Explain the statement the potential difference between two points is 1 volt

Avoltaic cell converts chemical energy to

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

The solid that is formed and usually sinks to the bottom of a solution is the