Combined Gas Law + Partial Pressure Review

What is the equation for Combined Gas Law?

• P2V2 / T2 = P1V1 / T1

• P1V1 / T1 = P2V2 / T2

• P1 / T1= P2 / T2

• V1 / T1 = V2 / T2

What is constant in the Combined Gas Law?

• volume

• pressure

• amount of gas

• temperature of gas

In what year was Combined Gas Law discovered?

• 1834

• 1738

• 1615

• 1900

What is a real life example of Combined Gas Law?

• escalator

• cloud formation

• air conditioner

• refrigerator

What is the equation for Partial Pressure?

• ΣP1+P3...

• ΣP1+P3+P2+...

• ΣP1+P2…

• ΣP1+P2+P3+...

Dalton’s Law states that the total pressure of a mixture of gases is equal to…

• the atoms in the gas

• the partial pressure of its components

• amount of temperature increased

• amount of temperature decreased

If I have 21L of gas held at a pressure of 78 atm and a temperature of 900 K, what will be the volume of gas if I decrease the pressure to 45 atm and decrease the temperature to 750K?

• 65.732L

• 30.3L

• 2L

• 7.5L

If I have 17 Liters of gas at a temperature of 67°C and a pressure of 88.89 atm, what will be the pressure of the gas if I raise the temperature to 94°C and decrease the volume to 12 liters? (hint: convert °C to K by adding 273)

• 555 atm

• 198472 atm

• 136 atm

• 240 atm

A sealed vessel contains 50% oxygen, 10% carbon dioxide, and 40% nitrogen gas. The total pressure of the gas mixture is 5 atmospheres. What is the partial pressure of the carbon dioxide?

• 0.5atm

• 0.9atm

• 10atm

• 100atm