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For the reaction 2A (g) + B(g) to C (g) ...

For the reaction `2A (g) + B(g) to C (g)`
`Delta U^(@) = 20` kcal/mole, `Delta S^(@) = 100` cal/kmole at 300 K. Hence `Delta G^(@)` in kcal is __________
`[R = 2 cal mol^(-1) K^(-1)]`

Text Solution

Verified by Experts

The correct Answer is:
`-1.2`
(-1, 2)
`2A (g) + B(g) to C (g)`
`Delta H^(@) = Delta U^(@) + Delta n_(g) RT = 30 + ((-2) xx 2 xx 300)/(1000) = 28.8` kcal/mole
`Delta G^(@) Delta h^(@) - T Delta S^(@) = 28.8 - (300 xx 100)/(1000) = - 1` kcal/mole
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