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Calculate Delta(f)G^(@) " for "(NH(4)Cl,...

Calculate `Delta_(f)G^(@) " for "(NH_(4)Cl,s)` at 310 K.
Given : `Delta_(f)H^(@)(NH_(4)Cl,s)=-314.5kJ//mol," "Delta_(r)C_(p)=0`
`S_(N_(2)(g))^(@)=192JK^(-1)mol^(-1)," "S_(H_(2)(g))^(@)=130.5JK^(-1)mol^(-1),`
`S_(Cl_(2)(g))^(@)=233JK^(-1)mol^(-1)," "S_(NH_(4)Cl(s))^(@)=99.5JK^(-1)mol^(-1),`
All given data at 300 K.

A

`-198.56 kJ//mol`

B

`-426.7 kJ//mol`

C

`-202.3 kJ//mol`

D

None of these

Text Solution

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The correct Answer is:
A
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