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Author Question: The combined-gas law best describes which of the following? a. The behavior of all gases when ... (Read 54 times)

captainjonesify

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on: Jul 16, 2018
The combined-gas law best describes which of the following?
 
  a. The behavior of all gases when volume is constant
  b. The combined behavior of pressure, vol-ume, and temperature
  c. The additive properties of individual gases occupying the same space
  d. The macroscopic behavior of gases when any or all variables change simultaneously

Question 2

It is implied that the absolute temperature of a gas will rise as the pressure is increased when which of the following occurs?
 
  a. Absolute temperature of the gas reaches absolute zero
  b. Size of the container remains constant
  c. Volume of the gas is held constant
  d. Volume of the gas is increased


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wergv

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
The combined-gas law describes the macroscopic behavior of gases when any or all of the varia-bles change simultaneously. As such, the combined-gas law states that the absolute pressure of a gas is inversely related to the volume it occupies and directly related to its absolute temperature, or PV/T = nR.

Answer to Question 2

ANS: C
When the volume of a gas is constant, the temperature of the gas will rise as the pressure is in-creased (Gay-Lussac's law). Absolute zero is a theoretical temperature that has never been reached. The size of the container does not vary directly with volume.


captainjonesify

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Reply #2 on: Jul 16, 2018
Thank you :)


wergv

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Reply #3 on: Jul 16, 2018
Happy to help you


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