Thermodynamics and Thermochemistry - Result Question 109
####34. One mole of a non-ideal gas undergoes a change of state $(2.0 atm, 3.0 L, 95 K) \longrightarrow(4.0 atm, 5.0 L, 245 K)$ with a change in internal energy, $\Delta E=30.0 L$-atm. The change in enthalpy $(\Delta H)$ of the process in L-atm is
(2002, 3M)
(a) 40.0
(b) 42.0
(c) 44.0
(d) not defined, because pressure is not constant
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Solution:
- $\Delta H=\Delta U+\Delta(p V)=30+2(5-3)+5(4-2)=44 L atm$.
