Karen W.

asked • 08/20/18

Decreasing the pressure of an ideal gas at a constant mass and temperature will cause which of the following to increase?

I: The molar mass of the gas
II: The volume of the gas
III: The density of the gas
IV: The average kinetic energy of the gas
I and II
II only 
II and III
I and IV
I, II, and IV

1 Expert Answer


Karen W.

Wouldn't the answer be I, II, and IV? 


J.R. S.

No. The density will decrease, not increase. Density is mass/volume. The mass stays the same and the volume increases. Thus, density decreases. 


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