Question:-
Hot coffee in a cup is allowed to cool. Its cooling rate is measured and found to be greater than the value calculated by conduction, convention and radiation measurement. The difference is due to
Option (A)
Properties of coffee changing with temperature
Option (B)
Currents of air flow in the room
Option(C)
Underestimation of the emissivity of coffee
Option(D)
Evaporation
Correct Option:
(D)
question-answer-faq-6048