Free Absolute Zero MCQs with Answers
9 Absolute Zero MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Absolute zero is 0 K, equal to −273.15°C, the lowest theoretical temperature on the Kelvin scale. The topic covers the relationship between temperature and molecular motion, the extrapolation of gas volume or pressure to zero, and why absolute zero cannot be reached experimentally, although particles retain quantum zero-point energy.
Last updated
9 questions
- A. 0 degrees C
- B. -100 degrees C
- C. -273.15 degrees C
- D. -373 degrees C
Explanation: Extrapolating the straight line of volume against temperature backwards, every gas reaches zero volume at minus 273.15 degrees Celsius…
Correct answer: -273.15 degrees C- A. the volume of an ideal gas extrapolates to zero
- B. water freezes
- C. all gases liquefy
- D. pressure becomes infinite
Explanation: Extending the straight line of a volume against temperature graph backwards, it meets the axis at minus 273.15 degrees Celsius, which is…
Correct answer: the volume of an ideal gas extrapolates to zero- A. P = 1 atm
- B. P = 2 atm
- C. P = 3 atm
- D. P = 0 atm
Explanation: Absolute zero is minus 273 degrees Celsius, and extrapolating a pressure against temperature graph for a fixed volume of ideal gas back to…
Correct answer: P = 0 atm- A. 0C°
- B. 273K
- C. 273.16C°
- D. -273.16C°
Explanation: Absolute zero is the lowest theoretical temperature, equal to 0 K and approximately -273.15 °C; many older chemistry texts state it as…
Correct answer: -273.16C°- A. 0?C
- B. 273.16K
- C. ?273.16 K
- D. ?273.16?C
Explanation: Charles's law gives V proportional to absolute temperature, so extrapolating a volume-temperature graph to zero volume gives T = 0 K =…
Correct answer: ?273.16?C- A. 0°C
- B. 4°C
- C. -273.16˚C
- D. -173.16 ˚C
Explanation: This point, with a temperature of -273.15 ˚C, is the theoretical point where the samples would have "zero volume".
Correct answer: -273.16˚C- A. 0 oC
- B. 273 oC
- C. 546 oC
- D. -273 oC
Explanation: The graph of temperature with volume should be a straight line passing through the origin (0,0), given the temperature is measured in…
Correct answer: -273 oC- A. 10-4 K
- B. 10-2 K
- C. 10-1 K
- D. 10-5 K
Explanation: Explanation:Current attempts have resulted in temperature as low as 10-5 K. Hence, the correct answer is D.
Correct answer: 10-5 K- A. Only translational motion
- B. Only vibrational motion
- C. Only rotational motion
- D. All motion is ceased
Explanation: At absolute zero, which is 0 Kelvin or -273.15°C, all molecular motion ceases.
Correct answer: All motion is ceasedAbsolute Zero MCQs: common questions
Are these Absolute Zero MCQs free?
Yes. All Absolute Zero MCQs from Chemistry are free on TestUstad, with unlimited attempts and no account needed. Nothing on this page is a sample or a trial.
How many Absolute Zero MCQs are on this page?
There are 9 Absolute Zero MCQs in the Chemistry bank, shown 20 to a page with the correct answer and an explanation on each.
Does every Absolute Zero MCQ have an explanation?
Yes. Each Absolute Zero question shows the correct option and a written explanation of why it is correct, so a wrong answer teaches you something rather than just being marked wrong.
Can I take a timed Absolute Zero test?
Yes. The practice button on this page starts a free Absolute Zero test drawn from the Chemistry bank. It marks each answer instantly, gives you a score at the end, and can be retaken as many times as you like.