1st Year Chemistry Chapter 3 to 4.pdf

Q.1: Why Boyle’s Law is only applicable to ideal gases? Ans: Experimental verification of Boyle’s Law shows that if we double the pressure the volume become half and if we increase the pressure three times then volume decrease to 1/3 of the volume. But it is only possible incase of ideal gases not in case of real gases. So, Boyle’s Law is applicable to ideal gases only. Q.2: Define atm and give its relationship with other units. Ans: The force exerted by 760mm of Hg or 76cm long column of Hg on 1cm2 at OCo is called atm. Units of atm:

1st Year Chemistry Chapter 3 to 4.pdf

Q.1: Why Boyle’s Law is only applicable to ideal gases?

Ans: Experimental verification of Boyle’s Law shows that if we double the pressure

the volume become half and if we increase the pressure three times then volume

decrease to 1/3 of the volume. But it is only possible incase of ideal gases not in

case of real gases. So, Boyle’s Law is applicable to ideal gases only.

Q.2: Define atm and give its relationship with other units.

Ans: The force exerted by 760mm of Hg or 76cm long column of Hg on 1cm2 at OCo

is

called atm. Units of atm:





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