Determine the internal energy of a monatomic gas at a pressure of 10 ^ 5 Pa, if it occupies a volume of 10 liters.

Data: P (pressure under which the monatomic gas is located) = 10 ^ 5 Pa; V (the volume occupied by a monatomic gas) = 10 liters (10 dm3, 10 * 10 ^ -3 m3).

Reference data: i (number of degrees of freedom of a monatomic gas) = 3.

The internal energy of the gas is determined by the formula: U = 0.5 * i * P * V.

Let’s calculate: U = 0.5 * 3 * 10 ^ 5 * 10 * 10 ^ -3 = 1500 J (1.5 kJ).

Answer: The internal energy of a monatomic gas at the given parameters is 1.5 kJ.




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' );