Free Boyle's Law MCQs with Answers
26 Boyle's Law MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Boyle's law states that the pressure of a fixed mass of gas varies inversely with its volume when temperature remains constant. Problems use the relationship P₁V₁ = P₂V₂, pressure-volume graphs and volume changes, with constant temperature distinguishing it from Charles's law.
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- A. directly proportional to its pressure
- B. inversely proportional to its pressure
- C. independent of its pressure
- D. proportional to the square of its pressure
Explanation: Boyle's law gives PV equal to a constant, so doubling the pressure halves the volume.
Correct answer: inversely proportional to its pressure- A. 200 cm3
- B. 250 cm3
- C. 1250 cm3
- D. 100 cm3
Explanation: Applying P1V1 equal to P2V2 gives V2 equal to 2 times 500 divided by 5, which is 200 cm3.
Correct answer: 200 cm3- A. double its volume
- B. halve its volume
- C. leave the volume unchanged
- D. quadruple its volume
Explanation: Boyle's law states that pressure and volume are inversely proportional at constant temperature, so the product PV stays constant and…
Correct answer: halve its volume- A. 250 cm3
- B. 500 cm3
- C. 1000 cm3
- D. 1500 cm3
Explanation: Using P1V1 equals P2V2, the new volume is 2 multiplied by 500 divided by 1, which is 1000 cm3.
Correct answer: 1000 cm3- A. 1660
- B. 1661
- C. 1662
- D. 1663
Explanation: Robert Boyle published his gas-pressure investigations in 1662, establishing that pressure is inversely proportional to volume at constant…
Correct answer: 1662- A. 3P
- B. P/3
- C. 3P/T
- D. 6P
Explanation: At constant temperature, Boyle's law gives P1V1 = P2V2. If V2 = 3V1, then P2 = P1V1/(3V1) = P1/3, so the pressure becomes P/3 in the same…
Correct answer: P/3- A. 1/2dm3
- B. 1/3dm3
- C. 1/4dm3
- D. 2/3dm3Trying Interactive Physics Simulation Software
Explanation: At constant temperature, Boyle's law gives P1V1 = P2V2. Thus V2 = (2 atm)(1 dm3)/(6 atm) = 1/3 dm3.
Correct answer: 1/3dm3- A. Straight line parallel to x-axis
- B. Straight line parallel to y-axis
- C. Straight line
- D. Curve
Explanation: At constant temperature, Boyle's law gives PV = constant, so P = constant x 1/V.
Correct answer: Straight line- A. 500 mm of Hg
- B. 900 mm of Hg
- C. 1,100 mm of Hg
- D. 1,270 mm of Hg
Explanation: Since the temperature is constant, this follows Boyle's Law: P₁V₁ = P₂V₂. We have P₁ = 760 mmHg, V₁ = 500 cm³, and V₂ = 300 cm³.
Correct answer: 1,270 mm of Hg- A. Isobaric
- B. Adiabatic
- C. Isochoric
- D. Isothermal
Explanation: Pressure and volume are said to be inversely proportional only when the temperature is kept constant.
Correct answer: Isothermal- A. variable
- B. constant
- C. discreet
- D. decreasing
Explanation: According to Boyle's Law, 'for a fixed amount of gas at a constant temperature, the product of pressure and volume remains constant.'
Correct answer: constant- A. Both are independent of each other
- B. Indirect
- C. Direct
- D. Dynamic
Explanation: According to the Boyle's law, an increase in the pressure of an ideal gas causes a proportionate decrease in its volume.
Correct answer: Direct- A. 1 atm
- B. 3 atm
- C. 6 atm
- D. 9 atm
Explanation: Since the pressure of a gas is inversely proportional to volume based on "Boyle's Law", therefore if volume increases by a factor of…
Correct answer: 1 atm- A. Charles's law
- B. Boyle's Law
- C. Avogadro's law
- D. Pascal's law
Explanation: This is correct as according to Boyle's law " The volume of the given mass of a gas is inversely proportional to the pressure applied to…
Correct answer: Boyle's Law- A. Curved
- B. Straight line
- C. Zigzag
- D. None of these options are correct
Explanation: If a chart is plotted between 1/V on the x-axis and the pressure P on the y-axis then a straight line is acquired.
Correct answer: Straight line- A. Pressure
- B. Temperature
- C. Volume
- D. Density
Explanation: Boyle's Law is a basic law in chemistry describing the behavior of a gas held at a constant temperature.
Correct answer: Temperature- A. 5%
- B. 10%
- C. 5.26%
- D. 4.26%
Explanation: Solution of the question: P1 V1 = P2 V2 ....(eq1) V2 = 5% decrease in the original volume ∴ V2 = 95 / 100 V1 Put this in eqn 1: P1 V1 = P2…
Correct answer: 5.26%- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: The correct expression for Boyle's Law is:
Correct answer: Option B19. At constant temperature, when the pressure of gas is increased three times then its volume becomes:
- A. 2V/3
- B. 3V
- C. V/3
- D. 5V
Explanation: When the pressure of a gas is increased three times at constant temperature, according to Boyle's Law, the volume of the gas decreases to…
Correct answer: V/3- A. PV vs. P
- B. P vs. V
- C. P vs V-l
- D. PV vs. P-1
Explanation: As pressure and volume are inversaly proportional to each other.So,their plot will be a curved graph.
Correct answer: P vs. VBoyle's Law MCQs: common questions
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