Chemistry·Prelims Questions

Ideal Gas Equation — Prelims Questions

NEET UG
Updated 22 Mar 2026
Q1medium

A gas occupies a volume of 2.5L2.5\,\text{L} at 27C27^\circ\text{C} and 1atm1\,\text{atm} pressure. If the pressure is increased to 2atm2\,\text{atm} and the temperature is raised to 127C127^\circ\text{C}, what will be the new volume of the gas?

Q2medium

What is the density of N2\text{N}_2 gas at 227C227^\circ\text{C} and 5.0atm5.0\,\text{atm} pressure? (Given: Molar mass of N2=28g/mol\text{N}_2 = 28\,\text{g/mol}, R=0.0821L atm mol1K1R = 0.0821\,\text{L atm mol}^{-1}\text{K}^{-1})

Q3easy

A 10L10\,\text{L} container holds 0.5mol0.5\,\text{mol} of an ideal gas at 25C25^\circ\text{C}. What is the pressure inside the container? (Given: R=0.0821L atm mol1K1R = 0.0821\,\text{L atm mol}^{-1}\text{K}^{-1})

Q4easy

Which of the following conditions would cause a real gas to deviate MOST from ideal behavior?

Q5medium

How many moles of an ideal gas are present in a 5.0L5.0\,\text{L} container at 27C27^\circ\text{C} and 760mmHg760\,\text{mmHg} pressure? (Given: R=0.0821L atm mol1K1R = 0.0821\,\text{L atm mol}^{-1}\text{K}^{-1})

Q6easy

At STP, 11.2L11.2\,\text{L} of an ideal gas has a mass of 14g14\,\text{g}. What is the molar mass of the gas?