Question

At 7 degrees Celsius the volume of gas is 49 liters. At the same pressure its volume is 74 mL at what temperature

Answer 1

Charle's law gives the relationship between volume and temperature of gas.
It states that at constant pressure, volume of gas is directly proportional to temperature of gas.
V/T = k
where V - volume , T - temperature and k- constant

`(V1)/(T1) = (V2)/(T2)`
parameters for the first instance are on the left side of the equation and parameters for the second instance are on the right side of the equation
T1 - 7 °C + 273 = 280 K
substituting these values in the equation

`(49 mL)/(280K) = (74 mL)/(T)`
T = 423 K
temperature in Celcius scale - 423 K - 273 = 150 °C