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Consider the following reaction: H(2)O...

Consider the following reaction:
`H_(2)O(l)toH_(2)O(g)" "DeltaH_(1)=44kJ`
`2CH_(3)OH(l)+3O_(2)to4H_(2)O(l)+2CO_(2)(g)" "DeltaH_(2)=-1453kJ`
What is the value of `DeltaH` for second reaction if water vapour instead of liquid water is formed as product?

A

`-1409 kJ`

B

`-1629 kJ`

C

`-1277 kJ`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
`2CH_(3)OH+3O_(2)(g)rarr4H_(2)O(l)+2CO_(2)(g)+1453`
`(4xx44+4H_(2)O(l)rarr4H_(2)O(g))/(2CH_(3)OH+3O_(2)(g)rarr4H_(2)O(g)+2CO_(2)(g)+1277)`
`DeltaH=-1277`
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