Gas laws, ideal gas, liquefaction, intermolecular forces.
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Q1 · States of Matter — Gases and Liquids · EASY
According to Boyle's law, at constant temperature, when the pressure of a gas is doubled, its volume:
Q2 · States of Matter — Gases and Liquids · MEDIUM
At constant pressure, the volume of a fixed mass of an ideal gas at 27 °C will become twice when the temperature is raised to:
Q3 · States of Matter — Gases and Liquids · EASY
A gas occupies 500 mL at 1 atm pressure and 300 K. If the pressure is increased to 2 atm and temperature is decreased to 200 K, what will be the new volume of the gas?
Q4 · States of Matter — Gases and Liquids · MEDIUM
The critical temperature of a gas is the temperature above which the gas cannot be liquefied regardless of the pressure applied. Which of the following gases has the highest critical temperature?
Q5 · States of Matter — Gases and Liquids · HARD
A real gas deviates from ideal behaviour at high pressure and low temperature. The van der Waals equation for 1 mole of a real gas is (P + a/V²)(V - b) = RT. For a gas with a = 4.0 atm L² mol⁻² and b = 0.05 L mol⁻¹, calculate the pressure exerted by 1 mole of gas at 273 K occupying a volume of 2 L. (Use R = 0.082 L atm K⁻¹ mol⁻¹)