Chemistry
JAMB 1994
An increase in temperature causes an increase in the pressure of a gas because?
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A.
it decreases the number of collision between the molecules
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B.
the molecules of the gas bombard the walls of the container more frequently
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C.
it increases the number of collision between the molecules
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D.
it causes the molecules to combine
Correct Answer: Option B
Explanation
The temperature of the gas is proportional to the average kinetic energy of its molecules. Faster moving particles will collide with the container walls more frequently and with greater force. This causes the force on the walls of the container to increase and so the pressure increases.
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