Question

450 ml of oxygen gas is collected at 27°C. If for a particular use, the volume has to be reduced to 1/3
of its original volume, find the temperature to which the gas has to be cooled ? (pressure constant]​

Answer 1

Answer:

100K or -173 C

Explanation:

Answer 2

Given - Volume and temperature

Find - Temperature

Solution - The temperature to which the gas has to be cooled is -173 °Celsius

Final volume = 1/3*Original volume

Final volume = 1/3*450

Final volume = 150 millilitres

Volume and temperature are related to each other as follows -

Volume 1/Temperature 1 = Volume 2/Temperature 2

The temperature in Kelvin = 27 + 273

The temperature in Kelvin = 300 Kelvin

Keep the values in the formula to find the value of the final temperature.

450/300 = 150/Temperature 2

Temperature 2 = 150*300/450

Temperature 2 = 100 Kelvin

The temperature in Celsius = -173 °Celsius

Thus, the gas should be cooled to -173 °Celsius