12.4: Two State Gas Problems
Chapter 12

Dr. Robert Belford




Question 1
What pressure would 32.1 moles of a gas have if 28.6 moles had a pressure of 2.86 atm?
(A)  0.316 atm
(B)  2.55 atm
(C)  3.21 atm
(D)  0.393 atm
 
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Question 2
A ballon has a volume of 3.69L at 1 atm. What will be the new volume if it rises to an elevation where the atmosphere is 0.0235 atm?
(A)  0.00637 L
(B)  157 L
(C)  1.57L
(D)  367 L
 
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Question 3
What is the temperature of water vapor in a pressure cooker at 4.50 atm if it was 0.986 atm at 25oC?
(A)  1090 oC
(B)  109 oC
(C)  298 oC
(D)  226 oC
 
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Question 4
3.00 moles of nitrogen gas are in a container at 3.98 atm. Some nitrogen escapes and the new pressure is 0.673 atm. How many moles of nitrogen are left in the container?
(A)  1.97 mole
(B)  9.00 mole
(C)  0.00472 mole
(D)  0.507 mole
 
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Question 5
A closed hot air ballon has a volume of 32.0 L at 25oC. What is it's new volume if it is heated to 800.0oC?
(A)  115 L
(B)  1020 L
(C)  0.00868 L
(D)  8.87 L
 
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Question 6
A gas in a closed container at 21o C has a pressure of 0.928 atm. What is the pressure if the container is heated to 450.0 oC?
(A)  20.
(B)  19.9
(C)  2.3
(D)  2.28 atm
 
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Question 7
A gas in a sealed syringe has a pressure of 1.00 atm when the volume is 100.0 mL. What is the pressure when the syringe is compressed to a new volume of 2.50 mL?
(A)  250. atm
(B)  0.0250 atm
(C)  40.0 atm
(D)  2.50 atm
 
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Question 8
A gas in an elastic ballon has a volume of 25.0 L at 25 oC. What temperature must if be raised to if the volume is to expand to 50 L?
(A)  326 K
(B)  149 K
(C)  596 K
(D)  50.0 K
 
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Question 9
A bubble of nitrogen has a volume of 1.00mL when it is submerged to a depth in the ocean where it's pressure is 19.0 atm. What is it's volume when it reaches the surface at a pressure of 0.926 atm?
(A)  0.048 mL
(B)  19.0 mL
(C)  0.926 mL
(D)  20.5 mL
 
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