1.

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`

Answer» Correct Answer - 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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