Question

Some hydrogen gas a volume of 250cm3 at 20°c if the pressure is kept constant at what temperature will it's volume be 100cm3?

Answer 1

$T_1= 273+20=293k$

$\frac{V_1}{T_1}= \frac{V_2}{T_2}$

$T_2= \frac{V_2×T_1}{V_1}$

$T_1 = \frac{293×100}{250}=117.2k=-155.8°c$