For the reaction, C3H8(g)+5O2(g) xrightarrow3CO2(g)+4H2O(l) at constant temperature, Δ H-Δ E is

Question

For the reaction, C3H8(g)+5O2(g) xrightarrow3CO2(g)+4H2O(l) at constant temperature, Δ H-Δ E is (A)  + 3RT  (B)  -RT  (C)  + RT  (D)  -3RT

Tardigrade Admin · Accepted Answer

For the given reaction, Δ ng=np-nR=3-6=-3 Δ H=Δ E+Δ ngRT Δ H-Δ E=Δ ngRT Δ H-Δ E=-3RT

Q. For the reaction,
$C_{3} H_{8} (g) + 5 O_{2} (g) 3 C O_{2} (g) + 4 H_{2} O (l)$
at constant temperature, $Δ H - Δ E$ is