Empirical Gas Laws
Chapter 12

Dr. Robert Belford




Question 1
For Boyle's Law, ___ and ___ are variables whilc ___ and ___ are constants.
(A)  P,T & n,V
(B)  P,V & n,T
(C)  P,n & V,T
(D)  V,T & n,P
 

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Question 2
Consider a gas in a perfectly elastic ballon at constant temperature. If you triple the size of the ballon, what have you done to the pressure?
(A)  increased it three fold
(B)  increased it 9 fold
(C)  decreased it three fold
(D)  decreased it nine fold
 
Hint

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Question 3
What is the final pressure of a gas at 456.8 torr if it is isothermally expanded from a volume of 2.00 liters to a final volume of 22.0 liters
(A)  432.8 torr
(B)  5020 torr
(C)  41.5 torr
(D)  none of the above
 

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Question 4
A perfectly elastic ballon contains 980 mL of a gas in a pressure chamber at 3.5 atm. What is the new volume if the chamber is opened to an atmospheric pressure of 746 torr.
(A)  320 mL
(B)  no change
(C)  820 mL
(D)  3.4L
 
Hint

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Question 5
For Charle's Law, ___ and ___ are variables whilc ___ and ___ are constants.
(A)  P,T & n,V
(B)  n,V & P,T
(C)  V,T & n,P
(D)  none of the above
 

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Question 6
What is the effect on the volume of a gas if the absolute temperature (Kelvins) is tripled under isobaric (constant temperature) conditions?
(A)  Increased 3 fold
(B)  Decreased 3 fold
(C)  Increased 9 fold
(D)  Decreased 9 fold
 
Hint

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Question 7
What is the final volume of gas in a 1.00 liter perfectly elastic ballon if it is isobarically heated from an initial temperature of 25.0oC to a final temperature of 300.0oC? Isobaric means same pressure.
(A)  0.481L
(B)  1.92 L
(C)  22.0L
(D)  None of the above
 
Hint

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