Which parameter is kept constant in Boyle’s Law?

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SSC JE Civil 10 Oct 2023 Shift 3 Official Paper-I
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  1. Pressure and mass
  2. Temperature
  3. Mass
  4. Temperature and pressure

Answer (Detailed Solution Below)

Option 2 : Temperature
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Detailed Solution

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The correct answer is Temperature.

Key Points

Boyle's Law:

  • According to Boyle's law "For a fixed mass of gas at a constant temperature, the volume is inversely proportional to the pressure".
  • \(P \propto \frac{1}{V}\)
  • PV = constant.
  • where P = Absolute Pressure, V = Volume of gas
  • It means if the absolute pressure on a given volume of gas is increased, then the volume of gas will be decreased and vice versa for a given constant temperature.

Additional Information

  • Gases that obey the gas laws (Charles law, Boyles law, and Universal Gas Law) are called ideal gases.
  • Boyle’s, Charles’, and Gay Lussac's Laws describe the basic behavior of fluids with respect to volume, pressure, and temperature

Gay Lussac’s Law

It states that at constant volume, the pressure of a fixed amount of a gas varies directly with temperature.

P ∝ T

\(\frac{P}{T} = Constant\)

Charles' Law

For a fixed mass of gas at constant pressure, the volume is directly proportional to the Kelvin temperature.

\(V\propto T \ or \ \frac{V}{T} = Constant.\)

Boyles-Law

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