Essential Chemistry for IGCSE - Rate Of Reaction (Section 3 - No. 32)
If a reaction produces a gas, which of the following is a reliable method for monitoring its rate?
Measuring the change in the color of the solution.
Measuring the change in pH.
Measuring the decrease in mass.
Measuring the increase in temperature.
Explanation
As the gas escapes, the mass of the reactants decreases, allowing for rate calculation.
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