Question

A gas at 7.75 x 104 Pa and 17°C occupies a volume of 850. cmº. At what temperature, in degrees Celsius, would the gas occupy 720. cm3 at 8.10 x 104 Pa?

Answer 1

$\tt \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}$

T₁=17+273=290 K

7.75x10⁴.850/290 = 8.10x10⁴.720/T₂

T₂=256.74 K = -16.26°C