MHT CET Chemistry question
According to Hess's law :
- (A)
- (B)Energy can be converted from one form to another but it is not possible to create or destroy it.
- (C)The enthalpy change of a given chemical reaction is the same even that occurs in one or several steps.Correct
- (D)Energy can be absorbed or released in a reaction but the total energy of the reacting system and its surrounding remains constant.
Answer: (C)
Solution
(a) is the definition of enthalpy and (b), (d) are statements of the law of conservation of energy (first law); Hess's law
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Question ID VK-064148