Given:(A) 2 CO_{(g)} + O_{2(g)} rightarrow | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Target equation:$C \ (	ext{graphite}) + \frac{1}{2} O_{2(g)} ightarrow CO_{(g)} \quad \Delta H = ? \dots (i)$From given equations:$(ii) \ C \ (

Vedclass · Accepted Answer

$\frac{x-2y}{2}$

Vedclass · Answer

(A) Target equation:$C \ (	ext{graphite}) + \frac{1}{2} O_{2(g)} ightarrow CO_{(g)} \quad \Delta H = ? \dots (i)$From given equations:$(ii) \ C \ (	ext{graphite}) + O_{2(g)} ightarrow CO_{2(g)} \quad \Delta H_2 = -y \ kJ \ mol^{-1}$$(iii) \ CO_{2(g)} ightarrow CO_{(g)} + \frac{1}{2} O_{2(g)} \quad \Delta H_3 = \frac{x}{2} \ kJ \ mol^{-1}$ (Reverse of equation $(A)$ divided by $2$)Adding equations $(ii)$ and $(iii)$:$C \ (	ext{graphite}) + O_{2(g)} + CO_{2(g)} ightarrow CO_{2(g)} + CO_{(g)} + \frac{1}{2} O_{2(g)}$$C \ (	ext{graphite}) + \frac{1}{2} O_{2(g)} ightarrow CO_{(g)}$$\Delta H = \Delta H_2 + \Delta H_3 = -y + \frac{x}{2} = \frac{x-2y}{2} \ kJ \ mol^{-1}$

Similar Questions

The enthalpy of neutralisation of $NH_4OH$ and $HCl$ is numerically:

For the reaction $H_{2} + I_{2} \rightarrow 2 HI$,provide the potential energy profile diagram and prove that it is an exothermic reaction.

The standard enthalpy of formation of $NH_3$ is $-46.0 \, kJ/mol$. If the enthalpy of formation of $H_2$ from its atoms is $-436 \, kJ/mol$ and that of $N_2$ is $-712 \, kJ/mol$,the average bond enthalpy of $N-H$ bond in $NH_3$ is......$kJ/mol$

The following thermochemical reactions are given:
$M + \frac{1}{2} O_2 \to MO + 351.4 \ kJ$ $(i)$
$X + \frac{1}{2} O_2 \to XO + 90.8 \ kJ$ $(ii)$
It follows that the heat of reaction for the following process $M + XO \rightleftharpoons MO + X$ is given by $... \ kJ$.

Calculate the standard enthalpy of combustion of carbon monoxide $(CO)$ given that $\Delta_f H^{\circ}(CO) = -110 \text{ kJ mol}^{-1}$ and $\Delta_f H^{\circ}(CO_2) = -393 \text{ kJ mol}^{-1}$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module