A fixed amount of gas in a cylinder obeys pV = nRT. Squeeze the volume at constant temperature and the pressure rises; heat the gas at constant volume and the pressure rises too. Move the sliders and watch the piston, the particle speeds, and the pressure respond.
MissionPredict the effect on pressure of halving the volume at constant temperature.Streak 0Best 0
At constant temperature, halving the volume changes the pressure to:
volume V5.0 × 10⁻³ m³
temperature T300 K
pressure p = nRT / V100 kPa
Fixed amount n = 0.20 mol, R = 8.31 J mol⁻¹ K⁻¹. At constant T, p ∝ 1/V (Boyle); at constant V, p ∝ T.