Physics-
General
Easy
Question
The cylinder shown contains a gas. The piston is held fixed and the cylinder is heated. As a result pressure of gas increases, this happens because
- the gas molecules expand
- the gas molecules move at the same speed but hit, the walls more often .
- the gas molecules move faster and hit the walls more often .
- The number of gas molecules increases.
The correct answer is: the gas molecules move faster and hit the walls more often .
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