Basic Gas Chemistry Quiz
(149).jpg "Basic Gas Chemistry Quiz - Quiz")
Gas is a common state of matter, they are easy to compress, they expand to fill their containers and occupy more space than the liquids or solids, which they form. Take up the gas chemistry quiz below and get to know what else you have understood from the topic so far.
- 1.
Which of the following changes would INCREASE the pressure of a gas in a closed container?
- A.
Increased volume of container
- B.
Increased number of particles in the container
- C.
Decreased temperature
Correct Answer
B. Increased number of particles in the containerExplanation
Increasing the number of particles in the container would increase the pressure of the gas in a closed container. This is because an increase in the number of particles leads to more collisions between the gas molecules and the walls of the container, resulting in an increase in pressure.Rate this question:
-
- 2.
Which of the following is NOT true about gases?
- A.
Gases have an indefinite volume
- B.
Gases have less kinetic energy than the same substance as a liquid.
- C.
Gases are compressible
- D.
Gases are farther apart than liquids.
Correct Answer
B. Gases have less kinetic energy than the same substance as a liquid.Explanation
The statement "Gases have less kinetic energy than the same substance as a liquid" is not true. In fact, gases have more kinetic energy than the same substance as a liquid. Kinetic energy is the energy of motion, and gases have higher kinetic energy because their particles are moving more freely and rapidly compared to the particles in a liquid.Rate this question:
-
- 3.
Which of the following are standard pressures:I: 1 atomosphereII 760 mm HgIII.100 mm HgIV. 100 kPaV. 101.3 kPaVI: 1 mm Hg
- A.
I, II and III are Standard Pressure for gases
- B.
I, III and V are Standard Pressure for gases
- C.
I, II and V are Standard Pressure for gases
- D.
IV and VI are Standard Pressure for gases
Correct Answer
C. I, II and V are Standard Pressure for gases -
- 4.
What is standard temperature for gases?I. 100 degrees CelsiusII. 0 degrees CelsiusIII. 100 degrees FahrenheitIV. 0 KelvinV. 273.16 Kelvin
- A.
I (only) is correct
- B.
II (only) is correct
- C.
III (only) is correct
- D.
II and V are correct
- E.
II and IV are correct
Correct Answer
D. II and V are correctExplanation
The standard temperature for gases is 0 degrees Celsius (II) and 273.16 Kelvin (V). This is because 0 degrees Celsius is the freezing point of water and is commonly used as a reference point for temperature measurements. Kelvin is an absolute temperature scale where 0 Kelvin represents absolute zero, the lowest possible temperature where all molecular motion ceases. Therefore, II and V are correct.Rate this question:
-
- 5.
Where would air pressure be higher?
- A.
At the top of the Alps mountains
- B.
At sea level
- C.
Skiing in Colorado
Correct Answer
B. At sea levelExplanation
More gas = more pressure. As you go higher in the atmosphere, there are less gas molecules.Rate this question:
-
- 6.
Which would have more gas pressure?
- A.
1 moles of gas in a 22.4 L container (at STP).
- B.
2 moles of gas in a 22.4 L container (at STP).
- C.
2 moles of gas in a 11.2 L container (at STP).
Correct Answer
C. 2 moles of gas in a 11.2 L container (at STP).Explanation
More molecules in a smaller container will have the most collisions, therefore the most pressure.Rate this question:
-
- 7.
Where would molecules be farther apart?
- A.
When the substance is a gas
- B.
When the substance is a liquid
- C.
When the substance is a solid
Correct Answer
A. When the substance is a gasExplanation
In a gas, molecules have more freedom of movement and are not bound tightly together. This allows them to spread out and occupy a larger volume, resulting in greater distance between molecules compared to a liquid or solid. In a liquid, molecules are closer together due to intermolecular forces, while in a solid, molecules are tightly packed and have the least amount of space between them. Therefore, molecules are farther apart when the substance is a gas.Rate this question:
-
- 8.
Which of the following is NOT assumed by the kinetic-molecular theory?
- A.
Gas molecules are not significantly attracted to other gas molecules.
- B.
Collision between gas particles are elastic.
- C.
All gas molecules have the same mass.
- D.
All gas molecules move in a straight, constant motion.
Correct Answer
C. All gas molecules have the same mass.Explanation
The kinetic-molecular theory assumes that gas molecules are not significantly attracted to other gas molecules, that collisions between gas particles are elastic, and that all gas molecules move in a straight, constant motion. However, it does not assume that all gas molecules have the same mass. This is because different gas molecules have different masses, which can affect their behavior and properties.Rate this question:
-
- 9.
Which variable is most important to determine the average kinetic energy of gas particles?
- A.
Volume of the container
- B.
Volume of the particle
- C.
Mass of the container
- D.
Temperature
Correct Answer
D. TemperatureExplanation
Kinetic energy: 1/2 mass x (velocity)^2Rate this question:
-
- 10.
The number of atoms in one mole of gold is:
- A.
Avagodro's number
- B.
1.02 x 10^23
- C.
Dalton's number
- D.
Boyle's number
Correct Answer
A. Avagodro's numberExplanation
Avogadro's Law says that equal volumes of all gases contain the same number of molecules. The number of molecules in 1 mole of a gas is 6.02 x 10^23. This is called: Avogadro's number.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Nov 02, 2009Quiz Created by
Kwchiro
- Atomic Theory Quizzes
- Chemical Bonding Quizzes
- Chemical Compound Quizzes
- Chemistry Practice Quizzes
- Clinical Chemistry Quizzes
- Electrolysis Quizzes
- Functional Group Quizzes
- Gas Quizzes
- General Chemistry Quizzes
- IBSL Chemistry Quizzes
- Medicinal Chemistry Quizzes
- Molecule Quizzes
- Rate Of Reaction Quizzes
- Reaction Quizzes
- Soap Quizzes
- Solution And Mixture Quizzes
- State Of Matter Quizzes
- Stoichiometry Quizzes
Back to top