If an ice cube melts at 0°c, but water also freezes at 0°c, what is the difference between melting and freezing in terms of a. the energy involved in the phase changes b. particles of the substances during the phase changes? ⚠ not multiple choice! use complete sentences.

Which feature indicates that mars resides in the inner region of the solar system

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.

What is the temperature in degrees celsius of a substance with a tempature of 49k