Absolute zero is
A. the temperature at which the motion of particles theoretically ceases.
B. defined as 0°C.
C. the triple point for water.
D. all of the above
A???
correct
The correct answer is A. Absolute zero is the temperature at which the motion of particles theoretically ceases. It is the lowest possible temperature on the Kelvin scale, which is equivalent to -273.15 degrees Celsius or -459.67 degrees Fahrenheit.
To arrive at this answer, you can eliminate options B and C. Option B states that absolute zero is defined as 0°C, but this is incorrect. The Celsius scale does not have an absolute zero; it is based on the freezing and boiling points of water. Option C incorrectly states that absolute zero is the triple point for water, which is the temperature and pressure at which water can exist in solid, liquid, and gas phases simultaneously.
To verify option A, it would be helpful to have an understanding of thermodynamics or knowledge of the concept of absolute zero. Absolute zero refers to the point at which the kinetic energy of particles is at a minimum, resulting in minimal atomic or molecular motion. It is a fundamental concept in physics and the basis for the Kelvin temperature scale. By studying and understanding these principles, you can confidently choose option A as the correct answer.