The volume occupied by one mole of any ideal gas at standard temperature and pressure is
Correct answer: A. 22.4 dm3
- A. 22.4 dm3
- B. 24 dm3
- C. 1 dm3
- D. 22.4 cm3
Explanation
At 273 K and 1 atmosphere one mole of any gas occupies 22.4 dm3, which follows from the ideal gas equation and is independent of the identity of the gas. The figure 24 dm3 applies at room temperature, about 298 K, so it is right for a different condition and wrong here. Reading dm3 as cm3 changes the answer by a factor of a thousand.
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About Moles and Avogadro's Number
The mole connects the microscopic number of particles with measurable mass, using Avogadro's number, 6.022 × 10²³ particles per mole. Questions involve molar mass, conversion between mass, moles and particles, percentage composition, empirical and molecular formulas, and distinguishing atoms, molecules, ions and formula units.
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