a sample of 0.800 mol of nitrogen has a pressure of 0.600 atm and a volume of 30.0 l. what is its temperature?
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A sample of 0.800 mol of nitrogen has a pressure of 0.600 atm and a volume of 30.0 L. What is its temperature?
A sample of 0.800 mol of nitrogen has a pressure of 0.600 atm and a volume of 30.0 L. What is its temperature?? >>
A sample of 0.800 mol of nitrogen has a pressure of 0.600 atm and a volume of 30.0 L. What is its temperature?
A sample of 0.800 mol of nitrogen has a pressure of 0.600 atm and a volume of 30.0 L. What is its temperature?
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Unit 2 Gases
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QUIZ
Unit 2 Gases
Unit 2 Gases 39%
145 9th - 12th Chemistry Deleted User 5 years
19 Qs
1. Multiple-choice 1 minute Q.
What is the volume of 0.881 mole of a gas at standard temperature and pressure?
answer choices 0.0401 L 19.7 L 22.4 L 39.4 L 2. Multiple-choice 1 minute Q.
The total pressure of a gas mixture is 1.05 atm. The mixture contains 55% carbon dioxide, 31% nitrogen, and 14% hydrogen. What is the partial pressure of the carbon dioxide in the mixture?
answer choices 0.58 atm 0.47 atm 0.33 atm 0.15 atm 3. Multiple-choice 1 minute Q.
A tank contains 6.0 moles of a mixture of hydrogen gas, H2, and oxygen gas, O2. The total pressure exerted by the gas mixture on the tank is 500 kPa. The partial pressure of hydrogen is 150 kPa. How many moles of each gas are present in the mixture?
answer choices
1.8 moles of H2 and 4.2 moles of O2
2.6 moles of H2 and 3.4 moles of O2
1.4 moles of H2 and 4.6 moles of O2
1.5 moles of H2 and 3.5 moles of O2
4. Multiple-choice 30 seconds Q.
A sample of helium gas is stored in a tank at 18 atm and 20°C. How do these conditions compare to the conditions of a gas at STP?
answer choices
lower pressure and lower temperature than STP
higher pressure and lower temperature than STP
lower pressure and higher temperature than STP
higher pressure and higher temperature than STP
5. Multiple-choice 30 seconds Q.
Which statement describes the change in pressure of the gas inside an automobile emergency air bag as it inflates?
answer choices
There is an increase in pressure as the number of gas molecules increases.
There is a decrease in pressure as the number of gas molecules increases.
There is an increase in pressure as the gas molecules diffuse outside the bag.
There is a decrease in pressure as the gas molecules diffuse inside the bag.
6. Multiple-choice 30 seconds Q.
A container is divided in half, and each side contains a different type of gas. Gas 1 has a temperature of T1 and a pressure of P1. Gas 2 has a temperature of T2 and a pressure of P2. Gas 2 is hotter and under more pressure than Gas 1. How will the system change when the division is removed?
answer choices
The gases will mix uniformly with a final temperature of T2 and a pressure of P2.
The gases will mix uniformly with a final temperature between T1 and T2 and a pressure of P2.
The gases will mix uniformly with a final temperature of T2 and a pressure between P1 and P2.
The gases will mix uniformly with a final temperature between T1 and T2 and a pressure between P1 and P2.
7. Multiple-choice 1 minute Q.
A sample of carbon dioxide has a pressure of 1.2 atm, a volume of 50.0 L, and a temperature of 650K. How many moles of carbon dioxide are included in the sample?
answer choices 1.1 mol 0.9 mol 0.1 mol 2.6 mol 8. Multiple-choice 30 seconds Q.
The normal pressure for a car tire is 220 kPa. The actual pressure reading for a tire is 262 kPa. Which of the following best explains why the actual pressure is greater than normal?
answer choices
An increase in molecules of gas produces fewer collisions against the inner tire surface.
More collisions occur between the inner surface of the tire as gas molecule numbers increase.
Random motion of gas molecules increases due to a decrease in the number of gas molecules.
A change in the number of gas molecules in the tire causes the random motion to be unstable. less
9. Multiple-choice 30 seconds Q.
When the temperature of a gas increases from 100K to 200K, what happens to the average kinetic energy of the molecules?
answer choices
The kinetic energy decreases by a factor of 2.
The kinetic energy increases by a factor of 2.
The kinetic energy decreases by a factor of 100.
The kinetic energy increases by a factor of 100.
10. Multiple-choice 1 minute Q.
A sample of 0.02 mol of oxygen has a temperature of 399K and a volume of 5.00 L. What is its pressure?
answer choices 0.13 atm 0.66 atm 3.28 atm 19.5 atm 11. Multiple-choice 30 seconds Q.
A student places a balloon filled with helium gas into a freezer and thirty minutes later observes that the balloon shrank. Which statement describes why the balloon changed in size?
answer choices
The number of helium atoms decreased.
The average kinetic energy of atoms decreased.
The total heat of atoms increased.
The heat capacity of atoms increased.
12. Multiple-choice 30 seconds Q.
A balloon expands as it fills with air. Which statement explains what happens to the internal pressure?
answer choices
The observed pressure is decreasing as the collisions of gas molecules increase.
The observed pressure is increasing as the collisions of gas molecules increase.
The observed pressure is decreasing as the collisions of gas molecules decrease.
The observed pressure is increasing as the collisions of gas molecules decrease.
13. Multiple-choice
Solved Do 2. A sample of 0.800 mol of nitrogen has a
Answer to Solved Do 2. A sample of 0.800 mol of nitrogen has a
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Guys, does anyone know the answer?