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Calculate Delta G (in joule) for the rea...

Calculate `Delta G` (in joule) for the reaction
`2A(g) to B(g)+C(g)`
when mixture contains 1 mole of A, 2 moles of B and 1 mole of C at total pressure of 10 atm and 300 K.
[Given : `G_(m)^(@),A(g)=40 "kJ mol"^(-1)`,
`G_(m)^(@),B(g)=60 "kJ mol"^(-1)`,
`G_(m)^(@),C(g)=20 "kJ mol"^(-1)`,
`R=8.3 JK^(-1)mol^(-1) and "In " 2=0.7`]

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