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Given the standard enthalpies at 298 k i...

Given the standard enthalpies at 298 k in kj/mol for the following two reactions
`Fe_2O_(3(s))+3/2C_(s) hArr 3/2CO_(2(g))+2Fe DeltaH=+234` …………(1)
`C_(s)+O_(2(g)) hArr CO_(2(g)) DeltaH=-393`
the value of `DeltaH` for `4Fe_((s))+3O_(2(g))hArr 2Fe_2O_3` is

A

`( 3)/(2) ( - 393) + 2 xx 234`

B

`( 3)/(2) ( - 393) + 234`

C

`3 ( -393) + 2 xx 234`

D

`3( - 393) - 2 ( 234)`

Text Solution

Verified by Experts

The correct Answer is:
D
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