Gas laws, ideal vs real gases, van der Waals equation, liquid state.
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Q1 · States of Matter (Class 11 — ~20% weight) · EASY
A gas occupies a volume of 400 mL at 27°C and 1 atm pressure. What will be its volume at 127°C and 2 atm pressure?
Q2 · States of Matter (Class 11 — ~20% weight) · MEDIUM
The van der Waals constant 'a' for a real gas is a measure of:
Q3 · States of Matter (Class 11 — ~20% weight) · HARD
At critical temperature (Tc), a gas having van der Waals constants a = 4.0 atm L² mol⁻² and b = 0.05 L mol⁻¹ will have a critical pressure Pc equal to: (Use Pc = a/(27b²))
Q4 · States of Matter (Class 11 — ~20% weight) · EASY
At constant temperature, if the volume of a gas is doubled, what happens to its pressure according to Boyle's law?