Gaseous State

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Q. According to Boyle's law, if the volume of a gas is doubled at constant temperature, what happens to the pressure?
  • A. It doubles
  • B. It halves
  • C. It remains constant
  • D. It quadruples
Q. According to Boyle's law, if the volume of a gas is doubled, what happens to its pressure?
  • A. It doubles
  • B. It halves
  • C. It remains constant
  • D. It quadruples
Q. According to Graham's law of effusion, the rate of effusion of a gas is inversely proportional to what?
  • A. Molar mass
  • B. Temperature
  • C. Pressure
  • D. Volume
Q. According to the ideal gas law, which of the following is the correct equation?
  • A. PV = nRT
  • B. PV = nR
  • C. P = nRT/V
  • D. V = nP/RT
Q. According to the kinetic molecular theory, which of the following statements is true?
  • A. Gas particles have significant volume.
  • B. Gas particles are in constant motion.
  • C. Gas particles attract each other.
  • D. Gas particles do not collide.
Q. At constant temperature, the volume of a gas is inversely proportional to its pressure. This is known as which law?
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Ideal Gas Law
Q. At what temperature does the volume of a gas become zero according to Charles's Law?
  • A. 0 K
  • B. -273.15 °C
  • C. 273.15 K
  • D. None of the above
Q. If the temperature of a gas is doubled at constant pressure, what happens to its volume?
  • A. It halves
  • B. It doubles
  • C. It remains the same
  • D. It quadruples
Q. In the ideal gas equation PV=nRT, what does 'n' represent?
  • A. Pressure
  • B. Volume
  • C. Number of moles
  • D. Temperature
Q. In the van der Waals equation, what do the constants 'a' and 'b' represent?
  • A. Pressure and volume
  • B. Attraction and volume
  • C. Temperature and pressure
  • D. Volume and temperature
Q. In which of the following conditions does a gas deviate most from ideal behavior?
  • A. High temperature and low pressure
  • B. Low temperature and high pressure
  • C. High temperature and high pressure
  • D. Low temperature and low pressure
Q. What happens to the pressure of a gas if the volume is doubled at constant temperature?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. What happens to the pressure of a gas if the volume is halved at constant temperature?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. What happens to the pressure of a gas if the volume is halved while the temperature remains constant?
  • A. Pressure doubles
  • B. Pressure halves
  • C. Pressure remains the same
  • D. Pressure quadruples
Q. What happens to the volume of a gas if the temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. What is the critical temperature of a gas?
  • A. The temperature above which a gas cannot be liquefied
  • B. The temperature at which a gas condenses
  • C. The temperature at which a gas expands
  • D. The temperature at which a gas is at its maximum density
Q. What is the effect of increasing temperature on the kinetic energy of gas molecules?
  • A. Increases kinetic energy
  • B. Decreases kinetic energy
  • C. No effect
  • D. Depends on the gas
Q. What is the molar volume of an ideal gas at standard temperature and pressure (STP)?
  • A. 22.4 L
  • B. 24.5 L
  • C. 18.0 L
  • D. 30.0 L
Q. What is the molar volume of an ideal gas at STP (Standard Temperature and Pressure)?
  • A. 22.4 L
  • B. 24.5 L
  • C. 18.0 L
  • D. 30.0 L
Q. What is the molar volume of an ideal gas at STP?
  • A. 22.4 L
  • B. 24.5 L
  • C. 18.0 L
  • D. 30.0 L
Q. What is the relationship between pressure and temperature for a fixed amount of gas at constant volume?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential
Q. What is the relationship between pressure and temperature in Gay-Lussac's Law?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. What is the relationship between the density of a gas and its molar mass at constant temperature and pressure?
  • A. Density is directly proportional to molar mass
  • B. Density is inversely proportional to molar mass
  • C. Density is independent of molar mass
  • D. Density is equal to molar mass
Q. What is the value of the universal gas constant R in L·atm/(K·mol)?
  • A. 0.0821
  • B. 8.314
  • C. 62.36
  • D. 1.987
Q. Which gas has the highest density at the same temperature and pressure?
  • A. He
  • B. Ar
  • C. N2
  • D. CO2
Q. Which gas has the highest rate of diffusion at a given temperature?
  • A. O2
  • B. N2
  • C. He
  • D. CO2
Q. Which gas law relates pressure and temperature at constant volume?
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Gay-Lussac's Law
Q. Which gas law relates the volume and temperature of a gas at constant pressure?
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Graham's Law
Q. Which gas law relates volume and temperature at constant pressure?
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Ideal Gas Law
Q. Which of the following equations represents the ideal gas law?
  • A. PV = nRT
  • B. PV = nR
  • C. PV = RT
  • D. P = nRT/V
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