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underset(S^(@)(298K)K^(-1)mol^(-1))(H^(+...

`underset(S^(@)(298K)K^(-1)mol^(-1))(H^(+)(aq))+underset(-10.7)(OH^(-)(aq))rarrunderset(+70)(H_(2)O(l))`
Standard entropy change for the above reaction is

A

`60.3 JK^(-1) mol^(-1)`

B

`80.7 JK^(-1) mol^(-1)`

C

`-70 JK^(-1) mol^(-1)`

D

`+10.7 JK^(-1) mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset(S^(@)(298K)JK^(-1) mol^(-1))(H_((aq))^(+)) + underset(-10.7J//mol//K)(OH_((aq))^(-)) rarr underset(+70J//mol//K)(H_(2)O_((l)))`
`Delta S^(@) (298K)= Delta S_(P)- Delta S_(R)= 70- (-10.7+0) 80.7 JK^(-1) mol^(-1)`
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