<\/a><\/p>\n

Generalmente los alumnos tienen ciertas dudas cuando se les presentan problemas del estilo \u00bb \u00bfCu\u00e1nto calor se intercambia para llevar agua de 55\u00baC a -30 \u00baC?\u00bb.<\/p>\n

Por esto,siempre es \u00fatil preguntarle al alumno que detalle todo lo que pasa cuando se enfr\u00eda el agua. Un dibujo es muy \u00fatil. El alumno dir\u00e1 que se enfr\u00eda al agua hasta los 0\u00baC en donde se congelar\u00e1 y luego llegar\u00e1 a -30\u00baC, lo cual es exactamente lo que sucede. En este punto se pregunta al alumno si conoce alguna forma de calcular la energ\u00eda\/calor para estos ejercicios, y cu\u00e1ndo se pueden utilizar tales f\u00f3rmulas. Entonces se tendr\u00e1n 2 f\u00f3rmulas : Q= m*c*(Tf-Ti) y Q=m*(entalp\u00eda de reacci\u00f3n). Ambas se pueden deducir; la primera por el concepto de calor especifico, la segunda por el concepto de entalp\u00eda. Se debe hacer comprender que la primera f\u00f3rmula solo se debe utilizar en el instante en que NO hay cambios de estado occuriendo<\/strong>, mientras que la segunda representa el calor intercambiado en un proceso (como puede ser cambio de fase). Entonces, al recordar lo que el alumno dijo inicialmente sobre qu\u00e9 pasa durante el enfriamiento, se puede relacionar cada parte con una ecuaci\u00f3n de calor. Entonces el calor intercambiado ser\u00e1 la suma de los tres calores.\u00a0Tambi\u00e9n\u00a0cabe destacar que muchos errores cometidos por los alumnos son confundirse qu\u00e9 entalp\u00eda utilizar, y utilizar 1 calor espec\u00edfico en todo el proceso, cuando se les dan varios. Por esto, hay que lograr que el alumno entienda, que el agua se est\u00e1 CONGELANDO<\/strong>, por eso usamos la entalp\u00eda de FUSI\u00d3N del agua<\/strong>. Y como el calor espec\u00edfico cambia seg\u00fan el estado de la materia, hay que usar el del l\u00edquido, cuando es agua, y el del s\u00f3lido, cuando es hielo.<\/p>\n

Recordemos que debemos guiar al alumno a que aprenda, por eso deber\u00edamos hacer algunas preguntas \u00abtramposas\u00bb para asegurarnos que haya entendido. Y siempre alentarlo a seguir trabajando.<\/p>\n

 <\/p>\n

Colaborador: Oscar Mozzino, Tutor Argentino de Qu\u00edmica<\/strong><\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Generalmente los alumnos tienen ciertas dudas cuando se les presentan problemas del estilo \u00bb \u00bfCu\u00e1nto calor se intercambia para llevar agua de 55\u00baC a -30 \u00baC?\u00bb. Por esto,siempre es \u00fatil preguntarle al alumno que detalle todo lo que pasa cuando se enfr\u00eda el agua. Un dibujo es muy \u00fatil. El alumno dir\u00e1 que se enfr\u00eda…<\/p>\n","protected":false},"author":9,"featured_media":3610,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":[],"categories":[89,84],"tags":[],"post_series":[],"_links":{"self":[{"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/posts\/193"}],"collection":[{"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/comments?post=193"}],"version-history":[{"count":1,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/posts\/193\/revisions"}],"predecessor-version":[{"id":3611,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/posts\/193\/revisions\/3611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/media\/3610"}],"wp:attachment":[{"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/media?parent=193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/categories?post=193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/tags?post=193"},{"taxonomy":"post_series","embeddable":true,"href":"https:\/\/dev.latinhire.com\/es\/wp-json\/wp\/v2\/post_series?post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Deprecated: Return type of AIOSEO\Plugin\Common\Models\Model::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 409

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Utils/Database.php on line 534

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Utils/Database.php on line 534

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$slug is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$title is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$content is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$type is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$level is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: json_decode(): Passing null to parameter #1 ($json) of type string is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 174

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$notification_id is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$notification_name is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$start is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$end is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button1_label is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button1_action is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button2_label is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button2_action is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$dismissed is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$new is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Utils/Database.php on line 534

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Utils/Database.php on line 534

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$slug is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$title is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$content is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$type is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$level is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: json_decode(): Passing null to parameter #1 ($json) of type string is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 174

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$notification_id is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$notification_name is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$start is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$end is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button1_label is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button1_action is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button2_label is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$button2_action is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$dismissed is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167

Deprecated: Creation of dynamic property AIOSEO\Plugin\Common\Models\Notification::$new is deprecated in /home/latinh2/dev.latinhire.com/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Models/Model.php on line 167