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##### Question: 1

Q no: 5(A) Define the Boyle's law. Explain the experiential verification of Boyle' law.

##### Answer: 1

1-19In 1662 Robert Boyle studied the relationship between the volumn and pressure of a gas at constant temperature. Defination :

The volume of a given mass of a gas is inversly proportional to its pressure provided the temperature remains constant.

Its mathematical form is v= k/p

Experimental verification:

The relationship between volumn and pressure can be verified by the following series of experiment .

Let us take some mass of a gas in a cylinder having a movable pisten and observe the effect of increase of pressure on it volumn . when the pressure of 2 atmosphere is applied, the volume of the gas reduces as 1dm³. When pressure is increased to 4 atm , the volume of the gas reducesto 0.5 dm³,. When we calculate the product of volume and pressure for this experiment, the product of all these experiment is constant.

P

_{1}V_{1}=2atm x 1dm³ =2atmdm³ P

_{2}V_{2}= 4atm x 0.5dm³ = 2atmdm³ P

_{3}V_{3}= 6atm x 0.33dm³ = 2atmdm³ P

_{4}V_{4}= 8atm x 0.25dm³=2atmdm³