Question

The heat of combustion of naphthalene [C10H8(s)] at constant volume was measured to be –5133 J mol–1 at 300 K. Calculate the value of heat of combustion at constant pressure :-

Answer 1

Can you give me the balanced chemical equation please?

Answer 2

:)

Answer 3

mm..i don't know..maybe its \[C _{8}H _{8} + 12O _{2} \rightarrow 10 CO _{2} + 4H _{2}O\]

Answer 4

but is it needed?

Answer 5

sorry in the earlier eqn its C10

Answer 6

I have to go, I'll help you out though,

C10H8 + 12O2 ---> 10CO2 + 4H2O \[DeltaE\] = -5133KJ



Now, we have to use \[DeltaH = DeltaU + (Deltan)RT\]



Continued: