A steel cylinder contains of oxygen gas at

PHYSICS · Multi-part · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A steel cylinder contains

16\,\text{g}

of oxygen gas at

400\,\text{K}

. The gas is allowed to expand reversibly and isothermally, doing

2.50\,\text{kJ}

of work. (i) Determine the number of moles of oxygen present in the cylinder. (Relative molar mass of oxygen

=32\,\text{g\,mol}^{-1}

.) (ii) If the initial volume of the gas was

2.0\,\text{L}

, calculate its final volume after the expansion. (iii) Comment on whether the expansion described above was carried out by the gas or on the gas, giving a brief justification.

Related theory

Ideal Gas Law
Equation of State
Thermodynamic Processes
Isothermal and adiabatic processes
Isothermal process
Thermodynamics

Browse the problem library