Physics 9702 · AS & A Level · Density and pressure

Density and pressure — practice question

A sample of gas is enclosed in a cylinder by a piston. Because the piston is frictionless and can move freely, the gas pressure stays constant at $1.80 \times 10^5\,\text{Pa}$. At first, the gas has a volume of $2.40 \times 10^{-4}\,\text{m}^3$. The gas now does $14.4\,\text{J}$ of work. What is the gas volume after this work has been done?

  • A$0.80 \times 10^{-4}\,\text{m}^3$
  • B$1.60 \times 10^{-4}\,\text{m}^3$
  • C$3.20 \times 10^{-4}\,\text{m}^3$
  • D$4.00 \times 10^{-4}\,\text{m}^3$

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