Kinetic Theory of Gases

Q. For a monoatomic ideal gas, the RMS speed is given by which of the following expressions?
  • A. sqrt((3kT)/m)
  • B. sqrt((3RT)/M)
  • C. Both of the above
  • D. None of the above
Q. For an ideal gas, if the temperature is increased, what happens to the RMS speed?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Depends on the gas
Q. For an ideal gas, if the volume is halved while keeping the temperature constant, what happens to the pressure?
  • A. It remains the same
  • B. It doubles
  • C. It halves
  • D. It quadruples
Q. For an ideal gas, the equation of state is given by:
  • A. PV = nRT
  • B. PV = NkT
  • C. PV = mRT
  • D. PV = kT
Q. For an ideal gas, which equation relates pressure, volume, and temperature?
  • A. PV = nRT
  • B. PV = nR
  • C. PV = RT
  • D. PV = nT
Q. For an ideal gas, which of the following equations is correct?
  • A. PV = nRT
  • B. PV = nR/T
  • C. PV = nT/R
  • D. PV = nRT^2
Q. For an ideal gas, which of the following is true at constant temperature?
  • A. PV = nRT
  • B. P1V1 = P2V2
  • C. P/T = constant
  • D. V/T = constant
Q. If 1 mole of an ideal gas occupies 22.4 L at STP, what is the pressure exerted by the gas?
  • A. 1 atm
  • B. 2 atm
  • C. 0.5 atm
  • D. 4 atm
Q. If 2 moles of an ideal gas at 300 K occupy a volume of 10 L, what is the pressure of the gas? (Use R = 0.0821 L·atm/(K·mol))
  • A. 0.5 atm
  • B. 1.0 atm
  • C. 2.0 atm
  • D. 3.0 atm
Q. If a gas occupies 10 L at 1 atm, what will be its volume at 2 atm if the temperature remains constant?
  • A. 5 L
  • B. 10 L
  • C. 20 L
  • D. 15 L
Q. If a gas occupies a volume of 10 L at 1 atm, what will be its volume at 2 atm if the temperature remains constant?
  • A. 5 L
  • B. 10 L
  • C. 20 L
  • D. 15 L
Q. If the molar mass of a gas is doubled, how does its RMS speed change?
  • A. Increases by sqrt(2)
  • B. Decreases by sqrt(2)
  • C. Remains the same
  • D. Increases by 2
Q. If the molar mass of a gas is doubled, how does the RMS speed change?
  • A. Increases by sqrt(2)
  • B. Decreases by sqrt(2)
  • C. Remains the same
  • D. Increases by 2
Q. If the molar mass of a gas is halved, what happens to its RMS speed?
  • A. Increases by a factor of sqrt(2)
  • B. Increases by a factor of 2
  • C. Decreases by a factor of sqrt(2)
  • D. Remains the same
Q. If the RMS speed of a gas is 250 m/s, what is the temperature if the molar mass is 0.028 kg/mol?
  • A. 100 K
  • B. 200 K
  • C. 300 K
  • D. 400 K
Q. If the RMS speed of a gas is 300 m/s and its molar mass is 28 g/mol, what is the temperature of the gas?
  • A. 300 K
  • B. 600 K
  • C. 900 K
  • D. 1200 K
Q. If the RMS speed of a gas is 300 m/s at 300 K, what will be its RMS speed at 600 K?
  • A. 300 m/s
  • B. 600 m/s
  • C. 300√2 m/s
  • D. 600√2 m/s
Q. If the RMS speed of a gas is 300 m/s at 400 K, what will be the RMS speed at 200 K?
  • A. 150 m/s
  • B. 300 m/s
  • C. 600 m/s
  • D. 100 m/s
Q. If the RMS speed of a gas is 300 m/s at 400 K, what will be the RMS speed at 800 K?
  • A. 300 m/s
  • B. 600 m/s
  • C. 424 m/s
  • D. 848 m/s
Q. If the RMS speed of a gas is 300 m/s, what is the RMS speed of the same gas at double the temperature?
  • A. 300 m/s
  • B. 600 m/s
  • C. 300√2 m/s
  • D. 600√2 m/s
Q. If the RMS speed of a gas is 400 m/s and its molar mass is 16 g/mol, what is the temperature of the gas?
  • A. 200 K
  • B. 400 K
  • C. 800 K
  • D. 1600 K
Q. If the RMS speed of a gas is 400 m/s at 300 K, what will be the RMS speed at 600 K?
  • A. 400 m/s
  • B. 800 m/s
  • C. 400√2 m/s
  • D. 800√2 m/s
Q. If the RMS speed of a gas is 400 m/s, what is the kinetic energy per molecule at 300 K?
  • A. 0.5 mJ
  • B. 0.4 mJ
  • C. 0.2 mJ
  • D. 0.1 mJ
Q. If the RMS speed of a gas is 400 m/s, what is the speed of the gas molecules in terms of average speed?
  • A. 400 m/s
  • B. 300 m/s
  • C. 500 m/s
  • D. 600 m/s
Q. If the RMS speed of a gas is 400 m/s, what is the speed of the molecules in terms of average speed?
  • A. 400 m/s
  • B. 300 m/s
  • C. 500 m/s
  • D. 600 m/s
Q. If the RMS speed of a gas is 500 m/s, what is the speed of the gas molecules at 1/2 of the RMS speed?
  • A. 250 m/s
  • B. 500 m/s
  • C. 1000 m/s
  • D. 125 m/s
Q. If the RMS speed of a gas is 500 m/s, what is the speed of the gas molecules in terms of average speed?
  • A. 500 m/s
  • B. 250 m/s
  • C. 400 m/s
  • D. 600 m/s
Q. If the RMS speed of a gas is 500 m/s, what is the speed of the molecules in the gas?
  • A. 500 m/s
  • B. 250 m/s
  • C. 1000 m/s
  • D. It varies
Q. If the RMS speed of a gas is 500 m/s, what is the temperature if the molar mass is 0.028 kg/mol?
  • A. 200 K
  • B. 300 K
  • C. 400 K
  • D. 500 K
Q. If the temperature of a gas is doubled at constant volume, what happens to the pressure?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
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