Question detail

If 3 moles of a gas are produced in a reaction, what is the volume of the gas at room temperature and pressure?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Use of amount of substance in relation to volumes of gases (chemistry only) (HT only)

Question

72 dm3

At room temperature and pressure, 1 mole of gas occupies 24 dm3. Therefore, 3 moles occupy 3 x 24 dm3 = 72 dm3.

Volume Calculation Mistake

Students often forget that one mole of gas occupies 24 dm3 at room temperature and pressure, leading to incorrect volume calculations.

Always remember to use the fact that one mole of any gas at room temperature and pressure occupies 24 dm3 when calculating gas volumes.

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