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DeltaH^(Theta)underset(f)' 298K of metha...

`DeltaH^(Theta)underset(f)' 298K` of methanol is given by the chemical equation

A

`CH_(4(g))+(1)/(2)O_(2(g))rarrCH_(3)OH_((g))`

B

`C ("graphite")+(1)/(2)O_(2(g))+2H_(2(g))rarrCH_(3)OH_((l))`

C

`C ("diamond")+(1)/(2)O_(2(g))+2H_(2(g))rarrCH_(3)OH_((l))`

D

`CO_((g))+2H_(2(g))rarrCH_(3)OH_((l))`

Text Solution

Verified by Experts

The correct Answer is:
B
Methanol can be prepared synthetically by heating carbon monoxide and hydrogen gases under pressure in the presence of catalyst.
`C" (graphite) "+1//2 O_(2)rarrCO_((g))" ….(i)"`
`CO_((g))+2H_(2(g))rarrCH_(3)OH(l)" ….(ii)"`
`C"(graphite) "+1//2 O_(2(g))+2H_(2(g))rarrCH_(3)OH_((l))`
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