1.

What is the enthalpy change of a reaction at 90°C, if the enthalpy of reactant at 90°C and 25°C are 60 J and 25 J, and enthalpy of product at 90°C and 25°C are 80 J and 10 J, and the enthalpy change of reaction at 25°C is 5 J?

A. 10 J
B. 50 J
C. 110 J
D. 150 J
Answer» D. 150 J


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