Question

CaCO₃(s) + 178 KJ/mol ⇌ CaO(S) + CO₂(g) The pressure of CO₂(g) gas​

Answer 1

Answer:

Explanation:

Your answer is in the attachment

Answer 2

Given : CaCO₃(s) + 178 KJ/mol ⇌ CaO(S) + CO₂(g).

We know that

$\mathrm{CaCO}_{3(\mathrm{~s})} \longrightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_{2(\mathrm{~g})} \quad \Delta \mathrm{n}_{\mathrm{g}}=1-0=1$

Temperature is given by :

$\mathrm{T}=977^{\circ} \mathrm{C}=977+273=1250 \mathrm{~K}$

$\begin{array}{l}\Delta \mathrm{E}=\Delta \mathrm{H}-\Delta \mathrm{n}_{\mathrm{g}} \mathrm{RT} \\\left(=174 \times\left(10^{3}\right)-1(8.314) \times(1250)\right) \mathrm{J} \\=163.6 \mathrm{~kJ}\end{array}$

Hence the final answer is 163.6 KJ.