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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

Both `A`and `R` are true and `R` is the correct explantion of `A`

B

Both `A`and `R` are true and `R` is not a correct explantion of `A`

C

`A` is true but `R` is false

D

`A` is false but `R` is true

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The correct Answer is:
A
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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.

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The a reaction to be spontaneous at all temperature

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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  8. Assertion(A) : q is a state function. Reason(R ) : q is a path funct...

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  12. Assertion (A): The dissolution of gases in water is always an endother...

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  13. Assertion(A) : The enthalpy of formation of O(2) at 1 atmospheric pres...

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  14. Assertion(A) : Two systems which are both in thermal equilibrium with ...

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  15. Assertion(A) : The value of enthalpy of neutralisation of strong acid ...

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  16. Assertion(A) : Standard entropy of O(2) gas is gt 0. Reason(R ) : En...

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  17. Assertion(A) : Decrease of free energy during the process under partic...

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  18. Assertion:Absolute values of intenal energy of substances cannot be d...

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  19. Assertion: Mass and volume are extensive properties. Reason: Mass/vo...

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