A 93-L sample of dry air cools from 145°C to ?22°C while

Solution 18P:

Here, we are going to calculate the final volume (V2) of the sample.

Step 1:

The ideal gas equation can be derived as follows:

According to Boyle’s Law:

, at constant temperature (T) and moles (n)

According to Charles's Law:

, at constant Pressure P.

According to Avogadro’s Law:

Thus, Combining these three expressions, we find that V is proportional to

where R is the ideal gas constant R=8.314 JK-1mol-1