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The free energy change for the following...

The free energy change for the following reactions are given below
`C_(2)H_(2)(g)+(5)/(2)O_(2)(g)to2CO_(2)(g)+H_(2)O(l),DeltaG^(@)=-1234kJ`
`C(s)+O_(2)(g)toCO_(2)(g),DeltaG^(@)=-394kJ`
`H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l),DeltaG^(@)=-273kJ`
What is the standard free energy change for the reaction `H_(2)(g)+2C(s)toC_(2)H_(2)(g)` :-

A

`-209 kJ`

B

`-2259 kJ`

C

`+2259 kJ`

D

209 kJ

Text Solution

Verified by Experts

The correct Answer is:
D
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