Which of the following is not favourable for SO 3 formation 2 SO 2 g - O 2 g - 2 SO 3 g - - H -45-0 kcalA- High pressureB- High temperatureC- Decreasing SO 3 concentrationD- Increasing reactant concentration

The correct option is B High temperature nbsp;The given reaction is nbsp; 2SO_2(g)+O_2(g)⇌ 2SO_3(g) We know, with increase in pressure the equilibrium wil ...

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Byju's Answer

Standard XII

Chemistry

Introduction to Le Chatelier's Principle

Which of the ...

Question

Which of the following is not favourable for $S O_{3}$ formation
$2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g); △ H = - 45.0 k c a l$

High pressure

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High temperature

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Decreasing

S O_{3}

concentration

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Increasing reactant concentration

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Solution

The correct option is B High temperature
The given reaction is
$2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g)$

We know, with increase in pressure the equilibrium will shift towards the side where fewer moles of the gases are present. So here at high pressure the rate of forward reaction will increase.

Since the reaction is exothermic, thus with increase in temperature the rate of backward reaction will increase. So high temperature is not favourable for the formation of $S O_{3}$ .

Decreasing $S O_{3}$ concentration will shift the reaction towards forward direaction according to Le chatelier's principle. So it is favourable for $S O_{3}$ formation.

Increasing reactant concentration also increases the formation of $S O_{3}$ according to Le chatelier's principle only.

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Similar questions

Q. Which of the following is not favourable for

S O_{3}

formation?

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g)

;

Δ H = - 45.0

kcal

Q. In the reaction,

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g) + X cal

, most favourable conditions of temperature and pressure for greater yield of

S O_{3}

are:

Q. In the following reversible reaction

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g), Δ H = + Q c a l

,
where Q is negative. Most suitable condition for a low production of

S O_{3}

is:

Q. For the equilibrium, the equilibrium concentration of

S O_{3}

will be affected by:

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g), Δ H = - 198 k J

The reaction

2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g)

Δ H = - X k J

is favoured by high pressure and high temperature.

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Which of the following is not favourable for SO3 formation 2SO2(g)+O2(g)⇌2SO3(g);△H=−45.0 kcal

Which of the following is not favourable for $S O_{3}$ formation
$2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g); △ H = - 45.0 k c a l$