Two identical vessels are filled, at the same temperature and pressure, with different gases. One is filled with hydrogen and the other with carbon dioxide. Which statement is correct? a. Carbon dioxide molecules will have inelastic collisions. b. The carbon dioxide molecules will collide more frequently than the hydrogen molecules. c. The hydrogen molecules have higher average kinetic energy than the carbon dioxide moleculesd. The hydrogen molecules are moving faster than the carbon dioxide molecules.

Question

Chemistry

Bitsy

8 October, 08:13

Two identical vessels are filled, at the same temperature and pressure, with different gases. One is filled with hydrogen and the other with carbon dioxide. Which statement is correct? a. Carbon dioxide molecules will have inelastic collisions. b. The carbon dioxide molecules will collide more frequently than the hydrogen molecules. c. The hydrogen molecules have higher average kinetic energy than the carbon dioxide moleculesd. The hydrogen molecules are moving faster than the carbon dioxide molecules.

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Answers (1)

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Elizabeth Kidd · Answer 1

C and D

Explanation:

Hydrogen molecules have less relative molecular mass than CO2. It is expected to have greater average kinetic energy than CO2 molecules. This also implies that Hydrogen molecules will move faster than CO2 molecules. Kinetic energy is known as energy in motion; hence, possession of greater kinetic energy means that the molecules of the gas tend to move faster. The relative molecular mass of hydrogen is 2 while that of CO2 is 44.