JEE MAIN - Chemistry (2023 - 30th January Evening Shift - No. 21)
Consider the following equation:
$2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \rightleftharpoons 2 \mathrm{SO}_{3}(g), \Delta H=-190 \mathrm{~kJ}$
The number of factors which will increase the yield of $\mathrm{SO}_{3}$ at equilibrium from the following is _______.
A. Increasing temperature
B. Increasing pressure
C. Adding more $\mathrm{SO}_{2}$
D. Adding more $\mathrm{O}_{2}$
E. Addition of catalyst
$2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \rightleftharpoons 2 \mathrm{SO}_{3}(g), \Delta H=-190 \mathrm{~kJ}$
The number of factors which will increase the yield of $\mathrm{SO}_{3}$ at equilibrium from the following is _______.
A. Increasing temperature
B. Increasing pressure
C. Adding more $\mathrm{SO}_{2}$
D. Adding more $\mathrm{O}_{2}$
E. Addition of catalyst
Answer
3
Explanation
$$\mathrm{2SO_2+O_2\rightleftharpoons 2SO_3~~\Delta H=-190~kJ}$$
It is an exothermic reaction
$$\therefore$$ factor B, C, D will increase the amount of SO$$_3$$.
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