Assertion :The pressure inside the LPG cylinder remains constant even when it is in use at room temperature. Reason: Vapour pressure of any liquid is independent of its amount; it depends only on temperature.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect but Reason is correct
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion Assertion The pressure inside the LPG cylinder remains constant even when it is in use at room temperature. Reason Vapour pressure of any liquid is independent of its amount; it depends only on temperature. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion Note: LPG is liquefied petroleum gas. The gas is liquefied under high pressure. When some amount of gas is used for cooking, a part of liquid changes its state into gas and compensates for the consumed gas. This maintains the gas pressure.