Consider the following equation: 2 SO 2 g + O 2 g ⇌ 2 SO 3 g , ΔH = - 190 kJ . The number of factors which will increase the yield of SO 3 at equilibrium from the following is _____ . A. Increasing temperature B. Increasing pressure C. Adding more SO 2 D. Adding more O 2 E. Addition of catalyst

Question

Consider the following equation: 2 SO 2 g + O 2 g ⇌ 2 SO 3 g , ΔH = - 190 kJ . The number of factors which will increase the yield of SO 3 at equilibrium from the following is _____ . A. Increasing temperature B. Increasing pressure C. Adding more SO 2 D. Adding more O 2 E. Addition of catalyst,

MARKS App · Accepted Answer

The given reaction is exothermic reaction, hence, decreasing temperature is the favourable condition. The change in gaseous moles of products and reactants is negative, hence, increasing pressure is the favourable condition. Addition of reactants and removal of products are the favourable conditions. Catalyst only increase the speed of the reaction. The yield of SO 3 at equilibrium will be due to : B. Increasing pressure C. Adding more SO 2 D. Adding more O 2

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