A 20.0 L gas cylinder has been filled with 4.00 moles of gas. You measure the pressure to be 4.20 atm. What is the temperature inside the tank? Express your answer to three significant figures and include the appropriate units. View Available Hint (s)

256 K

Explanation:

Given data

Volume (V) : 20.0 L Moles (n) : 4.00 mol Pressure (P) : 4.20 atm Ideal gas constant (R) : 0.0821 atm. L/mol. K Temperature (T) : ?

We can determine the temperature of the gas using the ideal gas equation.

P * V = n * R * T

T = P * V / n * R

T = 4.20 atm * 20.0 L / 4.00 mol * 0.0821 atm. L/mol. K

T = 256 K