Question:
Identify the correct statements from the following:
(I) According to Charles' law, at constant pressure, the volume of a gas is directly proportional to its temperature.
(II) The rate of diffusion of a certain mass of a gas is inversely proportional to its density, at constant pressure and temperature.
(III) The kinetic energy of a gas is directly proportional to T (K).
Identify the correct statements from the following:
(I) According to Charles' law, at constant pressure, the volume of a gas is directly proportional to its temperature.
(II) The rate of diffusion of a certain mass of a gas is inversely proportional to its density, at constant pressure and temperature.
(III) The kinetic energy of a gas is directly proportional to T (K).
(I) According to Charles' law, at constant pressure, the volume of a gas is directly proportional to its temperature.
(II) The rate of diffusion of a certain mass of a gas is inversely proportional to its density, at constant pressure and temperature.
(III) The kinetic energy of a gas is directly proportional to T (K).
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Charles' law states the direct proportionality between volume and temperature at constant pressure, and Graham's law describes the relation between the rate of diffusion and density.
Updated On: May 14, 2025
- I, II, III
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The Correct Option is B
Solution and Explanation
- Statement I (Charles' law): Correct. According to Charles' law, the volume of a gas is directly proportional to its temperature at constant pressure.
- Statement II (Graham's law): Correct. The rate of diffusion of a gas is inversely proportional to its density, at constant pressure and temperature.
- Statement III: Correct. The kinetic energy of a gas is directly proportional to the absolute temperature (T).
Thus, the correct answer is Option 2: I, II, III.
- Statement II (Graham's law): Correct. The rate of diffusion of a gas is inversely proportional to its density, at constant pressure and temperature.
- Statement III: Correct. The kinetic energy of a gas is directly proportional to the absolute temperature (T).
Thus, the correct answer is Option 2: I, II, III.
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