AP EAMCET · Chemistry · Chemical Equilibrium

For the reaction ${SO}_{2 (g)} + \frac{1}{2} O_{2 (g)} ⇌ {SO}_{3 (g)}$ , the percentage yield of product at different pressures is shown in the figure. Then, which among the following is true?

A Pressure has no effect
B $P_{1} < P_{2} < P_{3}$
C $P_{1} > P_{2} > P_{3}$
D $P_{1} = P_{2} = P_{3} \neq 0$

Verified Solution

Answer & Solution

Correct Answer

(C) $P_{1} > P_{2} > P_{3}$

Step-by-step Solution

Detailed explanation

So according to the concept of equilibrium reaction which is SO2 +12O2 ⇌ SO3 this reaction is favoured as exothermic reaction When pressure is lowered, the forward reaction is favoured. This increases the yields of SO3 So according to the question graph this…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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For the reaction SO2(g)+12O2(g)⇌SO3(g), the percentage yield of product at different pressures is shown in the figure. Then, which among the following is true?

Step-by-step Solution

For the reaction ${SO}_{2 (g)} + \frac{1}{2} O_{2 (g)} ⇌ {SO}_{3 (g)}$ , the percentage yield of product at different pressures is shown in the figure. Then, which among the following is true?