A) zero
B) positive
C) negative
D) constant
Correct Answer: B
Solution :
For endothermic, reactions standard heat of reaction \[(\Delta H)\] is positive because in these total energy of reactant is lower than product. i.e. \[{{E}_{R}}<{{E}_{P}}\] \[So,\Delta H={{E}_{P}}-{{E}_{R}}=+ve\]You need to login to perform this action.
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