Question

Absolute zero is




A. –273.15°C.


B. the lowest possible temperature.


C. the temperature at which the average kinetic energy of particles would theoretically be zero.


D. all of the above

Answer 1

C. Temperature at which the average kinetic energy of the particles would be theoretically zero is correct. because temperature is defined as the average kinetic energy \[KE = \frac{ 1 }{ 2 }mV ^{2}\]

B. this is theoretically the lowest possible temperature. this is also correct.

A this is true because Kelvin = C+273 so the absolute zero is 0K or -273C