An egg, initially at rest, is dropped onto a concrete surface and breaks. with the egg treated as the system:
a) what is the sign of w?
b)what is the sign of ? ep?
c) what is ? ek?
d) what is ? ut?
e) what is the sign of q?
in modeling this process, assume the passage of sufficient time for the broken egg to return to its initial temperature. what is the origin of the heat transfer of part (e)?

A) Negative
b) Negative
c) Positive
d) 0
e) Positive

The origin of heat transfer is the conversion of potential energy of the egg to heat energy.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Ionic compounds dissociate into component ions dissolved into a solution creating substances called "electrolytes".hope my answer has you : )