When 200cm3 of a gas at constant pressure is heated,its volume:
Correct answer: A. Increases
- A. Increases
- B. Remains unchanged
- C. Decreases
- D. First increases then decreases
Explanation
On heating,the temperature of gas will increase.So,its volume will also increase as temperature is directly proportional to volume at constant pressure(charles law).
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About Charles's Law
At constant pressure, the volume of a fixed mass of gas is directly proportional to its absolute temperature. Questions involve the Kelvin scale, the equation V₁/T₁ = V₂/T₂, volume-temperature graphs, and the need to distinguish Charles's law from Boyle's law, which relates pressure and volume.
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