If 21 mL of gas is subjected to a temperature change from 10.0°C to 120°C and a pressure change from 1.0 atm to 15 atm, the new volume is

Question

Chemistry

Irvin Hebert

4 September, 12:12

If 21 mL of gas is subjected to a temperature change from 10.0°C to 120°C and a pressure change from 1.0 atm to 15 atm, the new volume is

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Jaydan Hicks · Answer 1

After the change of temperature and pressure-> the number of moles of the gas is still the same.

n1=P1*V1/RT1

n2=P2*V2/RT2

R=0.082 constant ... you can cancel it out

n1=n2

10C=10+273.15K=283.15K

120c=120+273.15k=393.15

P1*V1/T1=P2*V1/T2

1*0.021/283.15=15*V2/393.15

V2=1.943*10^-3 L = 1.943ml