The molar heat of vaporization of some unknown compound X at its normal boiling point 6.9 K is 8.8 kcal/mol. Calculate AS (cal/K) when 1.8 gram of compound X gas condenses to liquid at 6.9 K and 1 atm. The molecular weight of compound X is 3.2

The molar heat of vaporization of some unknown compound X at its normal boiling point 6.9 K is 8.8 kcal/mol. Calculate AS (cal/K) when 1.8 gram of compound X gas condenses to liquid at 6.9 K and 1 atm. The molecular weight of compound X is 3.2

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter2: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 25P: A company advertises that it delivers helium at a gauge pressure of 1.72107 Pa in a cylinder of...

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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

Question

The molar heat of vaporization of some unknown
compound X at its normal boiling point 6.9 K is
8.8 kcal/mol. Calculate
AS
(cal/K) when 1.8 gram of compound X gas
condenses to liquid at 6.9 K and 1 atm. The
molecular weight of compound X is 3.2

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