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.

Change in enthalpy and change in internal energy are state functions.

1.	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.
Answer» 927.9J 279.2J 729.3J 999J Solution :`Delta H = nC_(p)DT = ((10)/(22.4)) xx (5)/(2) xx 8.314 xx 100` = 927.9