Activity 21- Ideal Gas Law A: Ideal Gas Law Label each term in the ideal gas law

Question

Activity 21- Ideal Gas Law A: Ideal Gas Law Label each term in the ideal gas law and indicate the units that should be used in the equation if using L atm of mofor the gas constant. B: Demonstration Predictions and Observations For each of the following demonstrations, predict how the described changes will affect other variables Circle predictions for dependent variables. for increasing, = for unchanged, for decreasing Description A balloon filled with 10 L of helium gas is cooled from room temperature (298K) using liquid nitrogen (77K) What is the final volume of the balloon? A balloon filled with 200mL of air is placed in a bell jar at a pressure of 1.0 atm. A vacuum pump is used to reduce the pressure in the bell jar to 0.01 atm. What is the final volume of the balloon? A balloon at 1.0 atm and 298K has an initial volume of 2.0 L. Calculate the volume of the balloon after the addition of 0.10 mol of air The air in the enclosed side of a manometer is warmed from 25°C to 37°C. How will the pressure of the gas change?

Explanation / Answer

A: Ideal gas Law

P = Pressure ( atm)

V= Volume ( L)

n = Number of moles (mol)

T = Temperature ( K)

R= Gas constant (L . atm/ mol .K)

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