Which of the following factors will speed up the rate of evolution of carbon (iv) oxide in the reaction below?

2HCl + CaCO\(_3\) → CaCl\(_2\) + H\(_2\)O + CO\(_2\)

  • A Increasing the concentration of the acid
  • B Increasing the surface area of CaCO\(_3\)
  • C A and B
  • D Reducing the concentration of the acid
jamb 2019chemistry

The correct answer is C. A and B

The following factors increase a reaction rate

- Increase in concentration of reactants

- Increase in temperature

- Addition of catalyst

- Increase in the surface area of reactant(s)

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