Question detail
If 1 mole of gas occupies 24 dm3, what volume will 0.5 moles occupy 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
- A. 12 dm3
- B. 6 dm3
- C. 24 dm3
- D. 18 dm3
Answer
12 dm3
Explanation
At room temperature and pressure, 1 mole of gas occupies 24 dm3. Therefore, 0.5 moles occupy 0.5 x 24 dm3 = 12 dm3.
Common mistake
Incorrect Volume Calculation
Students often forget to convert volumes from cm3 to dm3 when calculating gas volumes.
Always convert cm3 to dm3 by dividing by 1000 before using the volume in calculations.
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