AIPMT PRELIMS2003Chemistry-Thermodynamics

AIPMT PRELIMS 2003 Chemistry Entropy MCQ Question

Type: MCQ-numerical-Medium-Class 11

What is the entropy change (in JK⁻¹ mol⁻¹) when one mole of ice is converted into water at 0°C ? (The enthalpy change for the conversion of ice to liquid water is 6.0 KJ mol⁻¹ at 0°C)

A

20.13

B

2.013

C

2.198

D

21.98

Correct Answer

Option D

Detailed Explanation

The entropy change ΔS can be calculated using the formula ΔS = ΔH/T. Substituting the given values, ΔS = (6000 J/mol) / (273 K) = 21.98 JK⁻¹ mol⁻¹.

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