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The standard heats of formation of CH(4)...

The standard heats of formation of `CH_(4), H_(2)O` and `CH_(3)OH` are `-76, -242` and `-266` kJ/mole respectively. The enthalpy `CH_(3)OH_((l))+H_(2(g))rarrCH_(4(g))+H_(2)O_((l))`

A

`-4` kJ/mole

B

`-556` kJ/mole

C

`-318` kJ/mole

D

`-52` kJ/mole

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta H= Sigma Delta H_(f)^(@)` (products) `-Sigma Delta H_(f)^(@)` (reactants)
`Delta H= (-242.76) - (-266+ 0) = -52`kJ`
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