# NEET Chemistry Thermodynamics Questions Solved

The standard heat of combustion of Al is -837.8 kJ mol-1 at ${25}^{\circ }C$ which of the following releases 250 kcal of heat ?

1. The reaction of 0.624 mol of Al

2. The formation of 0.624 mol of Al2O3

3. The reaction of 0.312 mol of Al

4. The formation of 0.150 mol of Al2O3

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