One mole of an ideal diatomic gas () goes from an initial state at 25°C and 1 L to a final state at — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

The general entropy change formula for an ideal gas is $\Delta S = nC_v \ln(T_2/T_1) + nR \ln(V_2/V_1)$. Substituting parameters: $T_1 = 298 \text{ K}$, $T_2 = 373 \text{ K}$, $V_1 = 1 \text{ L}$, $V_2 = 10 \text{ L}$, $n = 1$. Thus, $\Delta S = 5 \ln(373/298) + 2 \ln(10/1)$.