Assertion: On increasing pressure there occurs decrease in melting point of ice. Reason: On melting, ice contracts.

Question

Assertion: On increasing pressure there occurs decrease in melting point of ice. Reason: On melting, ice contracts. (A) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. (B) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. (C) If the Assertion is correct but Reason is incorrect. (D) If the Assertion is incorrect and Reason is correct.

Tardigrade Admin · Accepted Answer

On increasing pressure, water-ice equilibrium shifts towards water side since the volume of the system decreases on melting of ice. For ice-water equilibrium again, temperature will have to be lowered. In other words melting point of ice decreases.

Q. Assertion : On increasing pressure there occurs decrease in melting point of ice. Reason : On melting, ice contracts.

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

If the Assertion is correct but Reason is incorrect.

If the Assertion is incorrect and Reason is correct.

On increasing pressure, water-ice equilibrium shifts towards water side since the volume of the system decreases on melting of ice. For ice-water equilibrium again, temperature will have to be lowered. In other words melting point of ice decreases.

Q. Assertion : On increasing pressure there occurs decrease in melting point of ice.
Reason : On melting, ice contracts.