1.

What is the enthalpy change of a reaction at 45°C, if the enthalpy of reactant at 45°C and 25°C are 10 J and 6 J, and enthalpy of product at 45°C and 25°C are 15 J and 8 J, and the enthalpy change of reaction at 25°C is 10 J?

A. 14 J
B. 21 J
C. 27 J
D. 34 J
Answer» C. 27 J


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