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1. |
What is the enthalpy change of a reaction at 45oC, if the enthalpy of reactant at 45oC and 25oC are 10 J and 6 J, and enthalpy of product at 45oC and 25oC are 15 J and 8 J, and the enthalpy change of reaction at 25oC is 10 J? |
A. | 14 J |
B. | 21 J |
C. | 27 J |
D. | 34 JView answer |
Answer» C. 27 J | |