Ideal Gas Law Practice Problems Explained

The video tutorial covers practice problems using the ideal gas law, PV=nRT. It begins with setting up the problem, converting temperature from Celsius to Kelvin, and rearranging the equation to solve for volume. The tutorial explains handling the gas constant R in calculations and concludes with solving for temperature in Celsius. The instructor provides tips on unit conversion and significant figures.

What is the ideal gas law equation?

• PV = nRT

• P = nRT/V

• PV = RT

• nRT = PV

How do you convert Celsius to Kelvin?

• Add 273

• Subtract 273

• Multiply by 273

• Divide by 273

What is the value of R used in the problem?

• 0.0821 L atm/K mol

• 8.314 J/K mol

• 0.0821 J/K mol

• 8.314 L atm/K mol

How is the volume calculated in the ideal gas law?

• V = RT/nP

• V = nRT/P

• V = P/nRT

• V = nP/RT

What is the correct way to round off 34.87801 to two significant figures?

• 35

• 34

• 34.9

• 34.87

What units are left after cancelling out in the volume calculation?

• Moles

• Kelvin

• Liters

• Atmospheres

What happens to R when it is on the bottom of the fraction?

• It is halved

• It is flipped upside down

• It is squared

• It remains the same

How do you convert Kelvin to Celsius?

• Divide by 273

• Subtract 273

• Multiply by 273

• Add 273

What is the final temperature in Celsius for the second problem?

• 12 degrees

• 273 degrees

• 41 degrees

• 285 degrees

What is the formula to solve for temperature using the ideal gas law?

• T = PV/Rn

• T = nPV/R

• T = PV/nR

• T = nR/PV