Question

A sample of argon gas has a volume of 735mL at a pressure of 1.20 atm and a temperature at 112C . what is the final volume of gas, in mililiters. when pressure and temperature of the gas are changed to the following....

1. 662mmHg and 283k

2. 0.43atm and 71C

3. 13.7atm and -19C

Answer 1

Ans. # Step 1: Calculate the moles of gas using ideal gas equation-

#1. Change in temperature and pressure does not affect the number of moles of a gas. So, the number of moles remains constant for all the cases.

Now, calculate the volume using ideal gas equation-

            Pressure, P = (662 mmHg / 760 mmHg) = 0.8711 atm

#2

#3