Question

A cylinder of Krypton has contains 17 L of Ar at 22.8 atm and 112 degrees celsisus. How many moles are in the cylinder?​

Answer 1

Given :

A cylinder of Krypton has contains 17 L of Ar at 22.8 atm and 112 degrees Celsius.

To Find :

How many moles are in the cylinder.

Solution :

We know, by ideal gas equation :

`PV = nRT\\\\n = (PV)/(RT)`

Here, R is gas constant and
`R = 8.205 * 10^(-5) \ m^3\ atm\ K^(-1) mol^(-1)`

Converting all given in required units and putting in above equation, we get :

`n = (P* V)/( R * T)\\\\n = (22.8 * 0.017)/(8.205* (112+273))\ moles\\\\n = 1.22 * 10^(-4) \ moles`

Hence, this is the required solution.