10.7 L of a gas at 1.75 atm are expanded to 20.0 L at a constant temperature.What is the new gas pressure?

Name: 10.7 L of a gas at 1.75 atm are expanded to 20.0 L at a constant temperature.What is the new gas pressure?
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Question

Quizplus · Accepted Answer

We can use the combined gas law to solve for the new pressure since the temperature is constant. 
P₁V₁ = P₂V₂
(1.75 atm)(10.7 L) = P₂(20.0 L)
P₂ = (1.75 atm)(10.7 L)/(20.0 L)
P₂ = 0.936 atm. 
Therefore, the new gas pressure is 0.936 atm. Answer choice B is correct.

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