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Change in enthalpy and change in interna...

Change in enthalpy and change in internal energy are state functions. The value of `DeltaH, DeltaU` can be determined by using Kirchoff's equation.
Calculate `DeltaH` when `10dm^(3)` of helium at NTP is heated in a cylinder to `100^(@)C`, assuming that the gas behave ideally.

A

927.9J

B

279.2J

C

729.3J

D

999J

Text Solution

Verified by Experts

The correct Answer is:
A
`Delta H = nC_(p)dT = ((10)/(22.4)) xx (5)/(2) xx 8.314 xx 100` = 927.9
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