Question

A gas at 89C occupies a volume of 0.67 L. At least what temperature will the volume increase to 1.12 L

Answer 1

At temperature 332.13 °C

Further explanation

Charles's Law  stated that :

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

$\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

T₁ = 89 °C=89+273=362 K

V₁ = 0.67 L

V₂ = 1.12 L

$\tt T_2=\dfrac{V_2.T_1}{V_1}\\\\T_2=\dfrac{1.12\times 362}{0.67}=605.13~K=332.13~^oC$