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Statement I: If heat is added to a system, its temperature must increase.Statement II: If positive work is done by a system in a thermodynamic process, its volume must increase.In the light of the above statements, choose the correct answer from the options given belowStatement I is true but Statement II is falseBoth Statement I and Statement II are falseBoth Statement I and Statement II are trueStatement I is false but Statement II is true

Question

Statement I: If heat is added to a system, its temperature must increase.Statement II: If positive work is done by a system in a thermodynamic process, its volume must increase.In the light of the above statements, choose the correct answer from the options given belowStatement I is true but Statement II is falseBoth Statement I and Statement II are falseBoth Statement I and Statement II are trueStatement I is false but Statement II is true

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Solution

Statement I is false but Statement II is true.

Explanation:

Statement I: If heat is added to a system, its temperature must increase. This statement is false. The temperature of a system may not increase even when heat is added to it. For example, during a phase change (like melting or boiling), heat is added to the system but the temperature remains constant.

Statement II: If positive work is done by a system in a thermodynamic process, its volume must increase. This statement is true. In a thermodynamic process, if a system does positive work, it means the system is expanding, hence its volume increases.

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