Question

If 40 L of a gas is stored under a pressure of 150 atm at 300 K. How many moles of the gas are present in the cylinder?

Answer 1

Answer:

243.90mol

Explanation:

the complete answer is mentioned in the attached image

Answer 2

Answer:

The total number of moles of gas in the cylinder is 243.9 mol.  

Calculation:

In order to calculate the moles of gas in the cylinder, we use the equation of ideal gas law.

This equation is PV=nRT, where

1. P- pressure of the gas
2. V- volume of the gas
3. n- number of moles of the gas
4. R- universal gas constant
5. T- temperature

We are given:

1. P = 150 atm
2. V = 40 L
3. T = 300 K

We now substitute these values in the ideal gas equation.

 150 × 40 = n × 0.082 × 300

$\frac{150*40}{0.082*300}$ = n

243.9 = n

Results:

The number of moles of gas = 243.9 mol.