Find the mass of glycerin if, when heated from 10 ° C to 15 ° C, it absorbed 12 kJ of heat?

Initial data: t1 (initial temperature of glycerin) = 10 ºС; t2 (final temperature of glycerin) = 15 ºС; Q (the amount of heat that glycerin absorbed when heated) = 12 kJ = 12 * 10 ^ 3 J.

Constants: C (specific heat capacity of glycerin) = 2350 J / (kg * K).

The mass of glycerin can be expressed from the following formula:

Q = C * m * (t2 – t1) and m = Q / (C * (t2 – t1)).

Let’s perform the calculation:

m = 12 * 10 ^ 3 / (2350 * (15 – 10)) = 1.02 kg.

Answer: The mass of glycerin is 1.02 kg.




One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.

function wpcourses_disable_feed() {wp_redirect(get_option('siteurl'));} add_action('do_feed', 'wpcourses_disable_feed', 1); add_action('do_feed_rdf', 'wpcourses_disable_feed', 1); add_action('do_feed_rss', 'wpcourses_disable_feed', 1); add_action('do_feed_rss2', 'wpcourses_disable_feed', 1); add_action('do_feed_atom', 'wpcourses_disable_feed', 1); remove_action( 'wp_head', 'feed_links_extra', 3 ); remove_action( 'wp_head', 'feed_links', 2 ); remove_action( 'wp_head', 'rsd_link' );