Moodie Q C O https://digital for C 12/11/17 out of 25 This is a Mixed question/i

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Moodie Q C O https://digital for C 12/11/17 out of 25 This is a Mixed question/i is worth 3 points/You huve unlimited attempts/Thereis no attempt penalty 16 Question (3 points) a See page 443 A cylinder with a movable piston contains an ideal gas. Both the amount of gas and the volume of the container can be adjusted, but the temperature remains constant at 300.0K. Use the ideal gas law and the individual gas law relationships to answer the questions below PV nRT where R 008206 L atm 1st attempt See Periodic Table ’ See Hint Part 1 (1point) Calculate the number of moles of the gas in the cylinder when the volume is set to Q.500 L and the pressure is 1.00 atm mol Part 2 (1 point)

Explanation / Answer

1)

we have:

P = 1.0 atm

V = 0.5 L

T = 300.0 K

find number of moles using:

P * V = n*R*T

1 atm * 0.5 L = n * 0.08206 atm.L/mol.K * 300 K

n = 2.031*10^-2 mol

Answer: 2.03*10^-2 mol

2)

P/n = constant

So, when n doubles, P will also double

Answer: D

3)

P*V = constant

Since P is becoming half

So, V must double

Answer: B

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