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As per second law of thermodynamics a pr...

As per second law of thermodynamics a process taken place spontaneously if and only if the entropy of the universe increases due to the process. Change in entropy is given by
`Delta S = (Q_(rev))/(T)`
What is the change in entropy of the universe due to the following reaction occuring at `27^(@)C` ?
`A + 2B rarr C + 2D, Delta H = +1.8 kJ mol^(-1)`
Molar entropy values of A, B, C and D are 1,2,3 and `4 JK^(-1) mol^(-1)` respectively.

A

0

B

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

C

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

D

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

Text Solution

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The correct Answer is:
A
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