17 Questions
What is the atomic mass of carbon?
12
Which unit is used to measure volume in the SI system?
Liters
Which of the following statements about gases is true?
Gases are highly compressible because their atomic particles are far apart.
What is the relationship between temperature and the average kinetic energy per atom in an ideal gas?
Temperature is directly proportional to the average kinetic energy per atom.
What are the three ways heat can be transerred?
Conduction, convection, and radiation
Which process appears as a horizontal line on a pV diagram?
Constant-pressure process
What is another name for a constant-temperature process?
Isothermal process
Which of the following is true about the graph of a constant-temperature process in a pV diagram?
It is a hyperbola
Why does a sealed bag of chips expand when taken to higher elevations?
The pressure inside the bag decreases
Which of the following represents a constant-volume process on a pV diagram?
A vertical line
What is the equilibrium position for a piston in a constant-pressure process?
The position at which the upward force equals the downward force
According to the ideal-gas law, which of the following statements is true?
All of the above.
What is the value of the gas constant in the ideal-gas law?
8.31 J/mol K
In an ideal-gas process, which of the following properties of the gas does NOT change?
The number of molecules of gas
When is the work done by a gas positive?
When the gas expands (V > 0)
What is the relationship between the work done by the environment and the work done by the gas?
The work done by the environment is the negative of the work done by the gas
What is the initial volume of the gas in the example?
100 cm^3
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