Chapter 11 Flashcards

0
Q

A gas is confined in a steel tank with a volume of 6.982L. At 20.20C , the gas exerts a pressure of 8.532 atm. After heating the tank, the pressure of the gas increases to 10.406 atm.

What is the temperature of the heated gas?

A

84.59 oC

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1
Q

When a milkshake is taken through a straw at a pressure of 0.071 atm, the straw contains 5.0 mL of liquid.

How much liquid is consumed?

A

3.9 mL

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2
Q

A 40.0 L sample of fluorine is heated from 90.0 oC to 186.0oC.

What volume will the sample occupy at the higher temperature?

A

50.5 L

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3
Q

The volume of a sample of helium is 4.50mL at 20.0oC and 203.o kPa.

What will it’s volume be at 10.0oC and 203. kPa?

A

4.34mL

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4
Q

A diver finds the best corals at the depth of approximately 10.0m. The divers lungs capacity is 2.40 L. The air temperature is 32.0oC and the pressure is 101.30kPa.

What is the volume of the divers lungs at 10.00m, at a temperature of 21.0oC, and a pressure (kPa) of 141.20 KPa?

A

1.66 L

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5
Q

At an ocean depth of 10.0m, a divers lung capacity is 2.40L. The air temperature is 32.0oC and the pressure is 101.30 kPa.

What is the volume of the divers lungs at the same depth, at a temperature of 21.0oC and a pressure of 141.20 kPa?

A

1.66L

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6
Q

A steal tank with a volume of 9.583 L contains N2 gas under a pressure of 4.972 atm at 31.8o.
Calculate the number of moles of N2 in the tank.

A

1.90 mol

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7
Q

A helium-filled ballon has a volume of 50.0l at 25oC and 1.08 atm.

What volume will it have at .855 atm and 10.0oC

A

60.0L

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8
Q

What volume does .0685 mol of gas occupy at STP?

A

1.53 L

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9
Q

How many moles of steam are produced at 2.00 atm and 202.0 degrees C by the complete combustion of 12.50 L of methane gas?

A

0.640

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