A sample of gas has a volume of 1.24 L under 2.35 atm pressure at 45°C. If the gas is then expanded to occupy a volume of 12.7 L at 0.515 atm, what is the temperature in degrees Celsius? Assume the number of moles of gas is held constant.

The final temperature of the gas is 440°C

Explanation:

To calculate the temperature when volume and pressure has changed, we use the equation given by combined gas law.

The equation follows:

where,

are the initial pressure, volume and temperature of the gas

are the final pressure, volume and temperature of the gasW

We are given:

Putting values in above equation, we get:

Converting the temperature from kelvins to degree Celsius, by using the conversion factor:

Hence, the final temperature of the gas is 440°C