Gas Laws Review

Convert 25°C to K

• 225K

• -248K

• 350K

• 298K

A sealed, rigid container is filled with three ideal gases: A, B, and C. How would you find the total pressure of the gases?

• Use Boyle's Law (P1V1=P2V2)

• Multiply the partial Pressures (AxBxC)

• Add together the partial pressure (A+B+C)

• Force/Area

You are about to go scuba diving and your tank is filled with 3 gases. The partial pressure of O2 is 0.93 atm, for N2 it’s 0.12 atm, and for CO2 it is 0.67 atm. What is the total pressure in the tank?

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What happens to the pressure of a gas if the volume is decreased?

• It increases because it is a direct relationship

• It increases because it is an indirect relationship

• It decreases because it is a direct relationship

• It decreases because it is an indirect relationship

A gas occupies 13.4 L at 1.860 atm. What is the pressure if the volume becomes 10.0 L?

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What happens to the volume of a gas if the temperature is increased?

• It decreases because it is a direct relationship

• It increases because it is an indirect relationship

• It decreases because it is an indirect relationship

• It increases because it is a direct relationship

A helium filled balloon has a volume of 44.0 L at 25°C and 1.06 atm. With a volume of 10.35 L and 0.575 atm what is the temperature in K?

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NGSS.HS-PS3-4

What is the new volume resulting from 50.0 mL of gas being heated from 23.0 °C to 55.00 °C?

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NGSS.HS-PS1-5

Calculate the pressure in atmospheres of 0.79 mol of He at 274 K and occupying 5.25 L.

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