At constant temperature, what happens to the pressure of a gas if its volume is

Practice Questions

Q1
At constant temperature, what happens to the pressure of a gas if its volume is halved?
  1. Pressure doubles
  2. Pressure halves
  3. Pressure remains the same
  4. Pressure quadruples

Questions & Step-by-Step Solutions

At constant temperature, what happens to the pressure of a gas if its volume is halved?
  • Step 1: Understand Boyle's Law, which states that pressure and volume of a gas are inversely related at constant temperature.
  • Step 2: Recognize that if the volume of the gas decreases (is halved), the pressure must increase to maintain the relationship.
  • Step 3: Calculate the effect: If the original volume is V and it is halved to V/2, the pressure will increase from P to 2P.
  • Step 4: Conclude that halving the volume of the gas doubles the pressure.
  • Boyle's Law – At constant temperature, the pressure of a gas is inversely proportional to its volume.
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