Graphical explanation of boyle's law

Graphical explanation of boyle's law

Consider a particular amount of a gas at a constant temperature say o c and enclose it in a cylinder having a piston in it . When the press ure is varied its volume changed . Increase the pressure decrease the volume . We plot a graph between pressure on x axis and volume on y axis then a curve is obtained This curve is called iotherm . The iso mean same therm means heat.

Definition 
The curve obtain by plotting pressure on x axis and volume on y axis at a constant temperature. 

 Now increase the temperature of the gas to 25%c. Keep this temperature constant and again vary the pressure and volume, and plot the isotherm. lt goes away from both the axes fig(3.3).the reason is that at higher temperature, the volume of the gas has increased. Similarly. if we increase the temperature further, make it constant and plot another isotherm, it further goes away from the axis .

 If a graph is plotted between 1/v on x_axis and the pressure P On the y axis then a stright line is obtained . This show pressure and inverse volume are directly proportional to each other. When pressure is close to zero than volume is so high that is inverse is close to zero then straight line will meet at the origion .