Question

Factors affecting speed of reaction include ________

(a) Volume of gas

(b) Change in mass

(c) Pressure

(d) Temperature change

I had been asked this question during an interview.

I want to ask this question from Concentration Gradients and Reaction Rates in Solid Catalysts in section Heterogenous Reactions of Bioprocess Engineering

Answer 1

The correct option is (c) Pressure

The explanation is: Increasing the pressure of a reaction improves the likelihood reactants will interact with each other, thus increases the rate of the reaction. As you would expect, this factor is important for reactions involving gases, and not a significant factor with liquids and solids.