A gas has a volume of 6.6 L at a temperature of 40 C. What is the volume of

the gas if the temperature changes to 15 C?

6.07 L

Explanation:

It appears that the reading has been made at constant pressure.

At constant pressure, the gas law formula is

V/T = constant V is volume and T is temperature of the gas.

V₁ / T₁ = V₂ / T₂

V₁ = 6.6 L,

T₁ = 40°C

= 273 + 40

= 313 K

T₂ = 15 + 273

= 288K

V₂ = ?

Putting the values in the formula above

6.6 / 313 = V₂ / 288

V₂ = 6.07 L.