Question

A gas has a pressure of 0.370 atm at 50.0 °C. What is the pressure at 22 °C, assuming volume remains constant?

A.) 0.34 atm
B.) 0.58 atm
C.) 0.74 atm
D.) 0.98 atm

Answer 1

A.) 0.34 atm

Step-by-step explanation:

Change the Celsius to Kelvin:

50.0 C = (273 + 50) = 323 K

22.0 C = ( 273 + 22) = 295 K

Gay-Lussac's Law: (P1/T1) = (P2/T2)

Rearranging that to solve for P2 gives

P2= (P1 x (T2/T1))

=0.370 atm x (295 K / 323 K)

= 0.338 atm

Answer A