A cylinder contains an ideal gas at

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

P_1 = 2.0\,\text{atm}

V_1 = 400\,\text{mL}

and

T_1 = 300\,\text{K}

. (i) The gas is first heated at constant pressure until its temperature reaches

450\,\text{K}

. (ii) Keeping this new temperature constant, the gas is compressed back to its original volume of

400\,\text{mL}

. Determine the final pressure of the gas after the two successive changes. (a)

1.33\,\text{atm}

(b)

4.5\,\text{atm}

(c)

3.0\,\text{atm}

(d)

2.0\,\text{atm}