A gas occupies 3 litres at 0°c. What volume will it occupy at -20°cpressure remaining constant? Solve by Charles' Law

A gas occupies 3 litres at 0°c. What volume will it occupy at -20°cp

1.	A gas occupies 3 litres at 0°c. What volume will it occupy at -20°cpressure remaining constant? Solve by Charles' Law
Answer» INITIAL volume = 3 LInitial temperature = 0° CFinal temperature = -20° CTo Find :Final volume of the gas.Solution :❖ Charles' law : Pressure remaining constant, the volume of a FIXED mass of a gas is directly proportional to its ABSOLUTE temperature.V₁ denotes initial volumeT₁ denotes initial temperatureV₂ denotes final volumeT₂ denotes final temperatureFirst of all we have to convert temperature from Celsius to Kelvin.• T₁ = 0 ^C = 273 K• T₂ = -20 °C = -20 + 273 = 253 KBy substituting the given values;➙ V₁ / T₁ = V₂ / T₂➙ 3 / 273 = V₂ / 253➙ V₂ = 3 × 253/273➙ V₂ = 3 × 0.926➙ V₂ = 2.778 L