Question

Water is a bad conductor of heat because:

• A. it has excess free electrons
• B. it has high pH
• C. it lacks free electrons
• D. it has low pH

Answer 1

Answer: (C)

it lacks free electrons

Conduction is a process of transfer of heat in which the thermal vibrations of the particles of a medium is constantly transferred to the successive particle and thus the thermal energy is transferred from one side to Other Side. In conduction, electrons play a very important role. For good conduction, electrons must be free. In water, the electrons are engaged in chemical bond and hence are not free to participate in conduction.