Which of these changes would NOT cause an increase in the pressure of a contained gas?A.The temperature is increased.B.The average kinetic energy of the gas in increased.C.More of the gas is added to the container.D.The volume of the container is increased.
Question
Which of these changes would NOT cause an increase in the pressure of a contained gas?A.The temperature is increased.B.The average kinetic energy of the gas in increased.C.More of the gas is added to the container.D.The volume of the container is increased.
Solution
The answer is D. The volume of the container is increased.
According to the ideal gas law (PV=nRT), if the volume (V) of the container increases while the amount of gas (n), temperature (T), and the gas constant (R) remain constant, the pressure (P) of the gas would decrease, not increase. Therefore, increasing the volume of the container would not cause an increase in the pressure of a contained gas.
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