JAMB Physics questions: Gas laws

13 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Gas laws· JAMB

   The pressure law states that, at constant volume, the pressure of a fixed mass of gas is proportional to its

   • Amass
   • Bvolume
   • Cdensity
   • Dabsolute temperature

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2. Question 2· Gas laws· JAMB

   A gas occupies 600 cm³ at 27 °C. At what temperature will it occupy 400 cm³ if the pressure is constant?

   • A−173 °C
   • B18 °C
   • C200 °C
   • D−73 °C

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3. Question 3· Gas laws· JAMB

   A gas occupies 4 litres at 3 atm. Find its volume at 6 atm and the same temperature.

   • A2 litres
   • B8 litres
   • C12 litres
   • D0.5 litres

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4. Question 4· Gas laws· JAMB

   A gas occupies 6 litres at 1 atm and 27 °C. Find its volume at 2 atm and 127 °C.

   • A4 litres
   • B9 litres
   • C2.25 litres
   • D16 litres

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5. Question 5· Gas laws· JAMB

   At absolute zero, the molecules of a gas would have

   • Amaximum kinetic energy
   • Bminimum kinetic energy
   • Cinfinite speed
   • Ddoubled mass

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6. Question 6· Gas laws· JAMB

   According to the kinetic theory, the pressure of a gas is caused by

   • Aheat from the container
   • Bmolecules attracting one another
   • Cthe weight of the gas
   • Dmolecules colliding with the walls of the container

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7. Question 7· Gas laws· JAMB

   A gas occupies 200 cm³ at 1 atm. At constant temperature its volume when the pressure is 4 atm is:

   • A100 cm³
   • B50 cm³
   • C800 cm³
   • D400 cm³

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8. Question 8· Gas laws· JAMB

   Absolute zero is the temperature at which

   • Awater freezes
   • Ba gas would theoretically exert no pressure
   • Cmercury boils
   • Dgases expand most

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9. Question 9· Gas laws· JAMB

   The general gas equation for a fixed mass of gas is

   • AV/P = constant
   • BPT = constant
   • CPV/T = constant
   • DPV = T²

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10. Question 10· Gas laws· JAMB

    A gas at 2 atm and 27 °C is heated at constant volume to 127 °C. Find its new pressure.

    • A9.4 atm
    • B2.67 atm
    • C1.5 atm
    • D4 atm

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11. Question 11· Gas laws· JAMB

    Charles's law states that, at constant pressure, the volume of a fixed mass of gas is proportional to its

    • Aabsolute temperature
    • BCelsius temperature
    • Cdensity
    • Dmass

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12. Question 12· Gas laws· JAMB

    A gas at 2 atm and 300 K is changed to 4 atm and 600 K. Its volume

    • Abecomes four times as large
    • Bdoubles
    • Chalves
    • Dremains the same

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13. Question 13· Gas laws· JAMB

    A sealed gas cylinder at 3 atm and 7 °C is left in the sun until it reaches 77 °C. Find the new pressure.

    • A2.4 atm
    • B33 atm
    • C3.75 atm
    • D6 atm

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