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Statement-1 : Many endothermic reactions...

Statement-1 : Many endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperatures.
Statement-2: Energy of the system increases with increase in temperature.

A

Statement-1 is true, Statement-2, is true, Statement -2 is a correct explanation for statement-1

B

Statement-1 is true, Statement-2, is true, Statement -2 is not a correct explanation for statement-1

C

Statement-1 is true, Statement-2 is false

D

Statement-1 is false, Statement-2 is true

Text Solution

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The correct Answer is:
C
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Assertion (A): May endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature. Reason (R ) : Entropy of the system increases with increase in temperature.

Statement -1: Many endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature. Statement-2: DeltaH^(@) of the endothermic recation increases with increases with increase in temperature.

Which of the reaction is expectd to be spontaneous at low temperatures and non-spontaneous at high temperatures:

An endothermic process is non-spontaneous at some temperature. It can be spontaneous at………….temperature.

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Assertion: All endothermic reactions which are non-spontaneous at room temperature become spontaneous at high temperatures. Reason : Endothermic reactions become spontaneous if DeltaS is positive and TDeltaS gt DeltaH .

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