Question

If 10 mL of a gas is at a pressure of 1 atm and we double the pressure, the new volume of the gas will be:
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Answer 1

V1= 10 ml                                                                    V2=?

P1= 1 atm                                                                     P2=2 atm    

Assuming temperature remains constant, applying the Charles law.

P1V1=P2V2=K (constant)

1*10=2*V2

10=2*V2

V2=5 ml

Hence, the new volume is 5 millilitres.