General Chemistry | Ideal Gas Law (PV=nRT) [Example #1]

The video tutorial covers the application of the ideal gas law in solving a chemistry problem. It begins with an introduction to the ideal gas law and sets up a problem involving 5.30 moles of gas at a pressure of 3.00 atmospheres and a temperature of 35 degrees Celsius. The tutorial explains the ideal gas equation, PV=nRT, and emphasizes the need to convert temperature to Kelvin. It guides the selection of the appropriate gas constant based on units and demonstrates the calculation of the gas volume, resulting in 44.7 liters.

What is the initial temperature of the gas given in the problem statement?

• 45 degrees Celsius

• 55 degrees Celsius

• 35 degrees Celsius

• 25 degrees Celsius

Which equation is used to calculate the volume of an ideal gas?

• PV = nRT

• E = mc^2

• F = ma

• V = IR

Why is it necessary to convert temperature to Kelvin in gas law calculations?

• Because Kelvin is a larger unit

• To ensure consistency in calculations

• To simplify the equation

• Because Celsius is not a valid unit

Which gas constant is most appropriate for use when pressure is given in atmospheres?

• 1.987 cal per mole per Kelvin

• 62.364 L Torr per mole per Kelvin

• 8.314 J per mole per Kelvin

• 0.082057 liter atmospheres per Kelvin per mole

What is the value of the gas constant used in this problem?

• 0.082057

• 62.364

• 1.987

• 8.314

What is the calculated volume of the ideal gas in liters?

• 34.7 liters

• 64.7 liters

• 44.7 liters

• 54.7 liters

How do we verify that the units of the calculated volume are in liters?

• By checking the initial conditions

• By using a different gas constant

• By converting the result to another unit

• By ensuring all units cancel except liters