States of Matter: Gases and Liquids
Gas laws and ideal gas equation; deviation from ideality, van der Waals equation; kinetic theory of gases; rms, average and most probable velocities; Dalton's law of partial pressures; diffusion; intermolecular interactions; liquids — vapour pressure, surface tension, viscosity.
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Take a full mock →Q1 · States of Matter: Gases and Liquids · MEDIUM
A closed vessel contains an ideal gas at 27°C. If the root mean square speed of gas molecules is 400 m/s, what will be the temperature (in °C) at which the root mean square speed becomes 600 m/s?
Q2 · States of Matter: Gases and Liquids · MEDIUM
At 320 K, the density of a certain gaseous molecule at 3 bar is double that of nitrogen (N₂) at 6 bar at the same temperature. The molar mass of the gaseous molecule (in g/mol) is:
Q3 · States of Matter: Gases and Liquids · HARD
Initially, the root mean square (rms) velocity of O₂ molecules at a certain temperature T is u. If the temperature is increased to 4T and all the oxygen molecules dissociate into oxygen atoms, the new rms velocity becomes:
Q4 · States of Matter: Gases and Liquids · MEDIUM
A gas undergoes an isothermal expansion at 400 K, during which its volume increases from 2.5 L to 8.0 L. If the initial pressure was 6.4 atm, what is the final pressure (in atm) of the gas? (Assume ideal behavior)
Q5 · States of Matter: Gases and Liquids · EASY
According to the kinetic molecular theory of gases, which of the following statements is INCORRECT?