Understanding the Ideal Gas Law

What is the value of R used in the ideal gas law equation?

• 8.314 J/(mol K)

• 8.2057 m^3 Pa/(mol K)

• 0.08314 L bar/K mol

• 0.0821 L atm/K mol

How do you convert Celsius to Kelvin?

• Multiply by 273

• Divide by 273

• Add 273

• Subtract 273

What is the volume of the helium gas in liters?

• 34 L

• 36 L

• 34.87 L

• 35 L

Why do we round the final answer to two significant figures?

• It's a rule in the ideal gas law

• To simplify the calculation

• Due to the least number of significant figures in the given data

• Because of the precision of R

What is the purpose of converting units in gas law problems?

• To match the units of R

• To simplify calculations

• To practice unit conversion

• To get larger numbers

What variable are we solving for in the second problem?

• Pressure

• Volume

• Temperature

• Number of moles

How do you rearrange the ideal gas law equation to solve for temperature?

• PV/nR

• nR/PV

• nRT/PV

• PV/Rn

What is the final temperature in Kelvin?

• 285 K

• 273 K

• 12 K

• 300 K

Tags

NGSS.HS-PS3-1

How do you convert Kelvin to Celsius?

• Divide by 273

• Subtract 273

• Add 273

• Multiply by 273

What is the final temperature in Celsius?

• 285 °C

• 0 °C

• 300 °C

• 12 °C

Tags

NGSS.HS-PS3-4