MHT CET 2023 Physics question
The pressure exerted by an ideal gas at a particular temperature is directly proportional to
- (A)the mean speed of the gas molecules
- (B)mean of the square of the speed of the gas moleculesCorrect
- (C)the square of the mean speed of the gas molecules
- (D)the root mean square speed of the gas molecules
Answer: (B)
Solution
From kinetic theory, , where is the mean of the squares of the molecular speeds (equal to ). So pressure is directly proportional to the mean of the
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Question ID VK-094525