Question

An 240. mL sample of oxygen at 90.00C and was cooled at constant pressure

until it has a volume of 450.0 mL. What was the final Celsius temperature of this
gas? *

Answer 1

The final temperature : T₂ = 680.625 K

Further explanation

Given

V₁=240 ml

T₁ = 90 + 273 = 363 K

V₂ = 450 ml

Required

The final temperature

Solution

Charles's Law

When the gas pressure is kept constant, the gas volume is proportional to the temperature

`\tt (V_1)/(T_1)=(V_2)/(T_2)`

Input the value :

T₂ = V₂T₁/V₁

T₂ = 450 x 363 / 240

T₂ = 680.625 K