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Question

How do you graph Boyle's law?


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Solution

Boyle's law:

  • Boyes's law states that at constant temperature(T) for a given mass of ideal gas, the volume(V) of the gas is inversely proportional to its pressure(P).
  • That is P1V, Therefore PV=K Where K is constant.
  • Graphs of Boyle’s law can be plotted at different temperatures.

Pressure v/s Volume Graph:

  • The graph of Boyle’s law is known as a pressure-volume graph or PV curve.
  • The pressure and volume graph at constant temperature is known as an isotherm

  • As the Pressure increases with decreasing in volume, and vice versa.
  • Other parameters such as temperature and amount of gas are constant in the graph.
  • The equation of the curve is PV=K, which is the equation of Boyle’s law.

Pressure v/s 1volume Graph:

  • The pressure exerted by the gas (P) is taken on the y-axis and the inverse of the volume occupied by the gas (1v) is taken on the x-axis and straight line are obtained.

  • Here, Pressure increases with decreasing in Volume, and vice versa.

PV v/s P Graph:

  • PV against P at constant temperature gives a straight line.

PV v/s V Graph:

  • PV against V at constant pressure gives a straight line.

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