When a solid melts and consequently boils, there is
...When a solid melts and consequently boils, there is
a gradual increase in the average kinetic energy of the particles
a sudden decrease in the kinetic energy of the particles
no change in the average kinetic energy of the particles
a rapid change in the nature of bonding of the components
a change in the size of the fundamental particles
Correct answer is A
- When a metal melts or boils, this is a change of physical state. Energy is transferred to a substance to melt or boil it.
- an increase in temperature will increase the average kinetic energy of the molecules.
- This energy is needed to overcome the forces of attraction between the metal ions and the delocalize electrons in the metal. The more energy needed, the higher the melting point or boiling point .
The least easily oxidized of the metals below is? ...
5SO2(g) + 2KMnO4(aq) + 2H2O(l) → K2SO4 + 2MnSO4(aq) + 2H2SO4(aq) In the reaction above, the produ...
Animal charcoal differs from wood charcoal in that it ...
Which of the following types of alkanols undergo oxidation to produce alkanoic acids. I. Primary ...
A salt which loses its mass when exposed to air is ...
If an atom is represented as 2311X, which of the following deduction is correct?...
Which statement is NOT true about the composition of starch? ...