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Combustion of sucrose is used by aerobic...

Combustion of sucrose is used by aerobic oranisms for providing energy for the life sustaining processes. If all the capturing of energy from reaction is done through electrical process (non `P-V` work), then calculate maximum available energy which can be captured by combustion of `34.2g` of sucrose.
Given, `DeltaH_("combustion")("surrose") =-6000KJ mol^(-1)`
`DeltaS_("combustion")=180J//K-mol` and body temperatuire is `300K`

A

`600KJ`

B

`594.6KJ`

C

`5.4KJ`

D

`605.4KJ`

Text Solution

Verified by Experts

The correct Answer is:
D
No. of moles of sucrose `=(34.2)/(342)=0.1`
`-(DeltaG)T,P` =useful work done by the system
`-DeltaG=-DeltaH+TDeltaS=+(6000xx0.1)+(180xx0.1xx300)/(1000)`
`=605.4KJ`
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