Question

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)

Answer 1

256 K

Step-by-step 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