1.

What is the enthalpy change of a reaction at 30°C, if the enthalpy of reactant at 30°C and 25°C are 18 J and 15 J, and enthalpy of product at 30°C and 25°C are 10 J and 8 J, and the enthalpy change of reaction at 25°C is 45 J?

A. 10 J
B. 25 J
C. 50 J
D. 100 J
Answer» D. 100 J


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