A sample of ideal gas expands along a straight-line path on a – diagram from the…

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

Problem

A sample of ideal gas expands along a straight-line path on a

P

–

V

diagram from the initial state (

4\times10^5\,\text{Pa}

2.0\,\text{L}

) to the final state (

1\times10^5\,\text{Pa}

5.0\,\text{L}

). During this process,

800\,\text{J}

of heat is supplied to the gas. (i) Calculate the work done by the gas. (ii) Determine the change in internal energy of the gas.