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Given Delta(r)S^(@)=-266 and the listed ...

Given `Delta_(r)S^(@)=-266` and the listed `[S_(m)^(@)value]` Calculate `S^(@) "for" Fe_(3)O_(4)(s)`:
`4Fe_(3)O_(4)(s)[...] +O_(2)(g)[205] to6Fe_(2)O_(3)(s)[87]`

A

248.25

B

`+111.1`

C

`+122.4`

D

`145.75`

Text Solution

Verified by Experts

The correct Answer is:
C
`-266 = 6 xx 87 -205 -4x`
`x=145.75`
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