If a gas is heated at constant pressure, which of the following description(s) will apply?i) Its volume is proportional to temperatureii) Kinetic energy of molecule decreasesiii) Kineticiv) energy of molecules increases
Correct answer: B. iii only
- A. i only
- B. iii only
- C. i and ii only
- D. i and iii only
- E. ii and iii only
Explanation
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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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