Question

A sample of gas occupies a volume of 120.0 ml at a pressure of 0.75 atm and a
temperature of 22 degree Celsius. What will the volume be at a pressure of 125 atm
and a temperature of 70 degree Celsius?​

Answer 1

Answer:

0.83 ml

Explanation:

P1=0.75 atm

T1= 22 C= 22+273 K= 295K

V1= 120ml = 0.12L

n=?

P1V1=nRT1

0.75×0.12=n ×0.0821×295

0.09= n×24.2195

n= 0.09÷24.2195

n= 0.00371 moles

moles will remain same after pressure and temperature change

P2=125 atm

n=0.00371

T2= 70 C= 343 K

V2 =?

P2V2=nRT2

125×V2=0.00371×0.0821× 343

125×V2=0.1044

V2= 0.1044/125

V2 = 0.00083 L

V2= 0.83 ml