Total enthalpy change for freezing of 1 mol of water at to ice at is .

Given:

Question

Total enthalpy change for freezing of 1 mol of water at  to ice at  is .

Given:

Canvas Classes · Accepted Answer

Strategy:
 Use a thermodynamic cycle to calculate the total enthalpy change: (1) Cool liquid water , (2) Freeze at , (3) Cool ice .

Step 1: Sum the steps
- Step 1: .
- Step 2: . (Exothermic freezing).
- Step 3: .

Step 2: Combine
.

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