Thermodynamics and Thermochemistry - Result Question 32
####32. 2 moles of an ideal gas expanded isothermally and reversibly from $1 L$ to $10 L$ at $300 K$. What is the enthalpy change?
(a) $4.98 kJ$
(b) $11.47 kJ$
(c) $-11.47 kJ$
(d) $0 kJ$
(2004, 1M)
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Solution:
- In case of reversible thermodynamic process,
$$ \Delta H=n C _p \Delta T $$
$\therefore$ Process is isothermal, $\Delta T=0 \Rightarrow \Delta H=0$
