Boyle's law states that at constant temperature, the volume of a fixed mass of gas is
- A. directly proportional to its pressure
- B. inversely proportional to its pressure
- C. independent of its pressure
- D. proportional to the square of its pressure
Explanation
Boyle's law gives PV equal to a constant, so doubling the pressure halves the volume. A graph of P against V is a hyperbola, while a graph of P against 1 over V is a straight line through the origin, and that straight line is the usual way the law is confirmed experimentally. Volume rising with pressure would describe no real gas.