When a solid melts and consequently boils, there is

okehinde175

4 years ago

I feel the answer choosen above disobeys the entire gas laws and does not tally with the explanation given. the gas laws state an increase in the average kinetic energy with a coresponding rise in temperture, but at melting and boiling point, there is no change in temperature, therefore, there should be no change in average kinetic energy. which means option c should be the answer. these means that the entire gas laws are wrong or they posses limitations. at melting and boiling point, there should be increase in temperature for gas molecules to continually break out of liquid state, except if there also liquid gas or better still, all the gas should gain kinetic energy at once except if heat is not being distributed equally which makes perfect sense. water is a poor conductor of heat. then option a should be correct. the reason is the total nomber of gaseoul molecule is equal to the number of liquid molecule. enhence temperature will remain constant because of the liquid molecules even as kinetic energy of molecule increases. peace!!!!

TheLivingLegend01

3 years ago

A. a gradual increase in the average kinetic energy of the particles.

When a solid melts and boils, heat energy is added to the substance causing the particles to gain energy and move more rapidly. The increase in energy causes the particles to break free from their fixed positions in the solid and transition into a liquid state. As the temperature continues to increase, the particles gain even more energy and move even more rapidly, eventually transitioning into a gaseous state. This gradual increase in the average kinetic energy of the particles is responsible for the phase changes from solid to liquid to gas

Godhild

4 years ago

This should be D
Average kinetic energy is same as temperature an temperature is constant during the process.
D is correct because the bond get lossens at melting and breaks down at boiling.