Heat transfer by natural convection is enhanced in system with
A)High viscosity
B)High co-efficient of thermal expansion
C)Low temperature gradients
D)Low density change with temperature

Question

Quizplus · Accepted Answer

Heat transfer by natural convection is enhanced in systems with a high coefficient of thermal expansion because this property increases the buoyancy forces that drive the convection currents, leading to more efficient heat transfer.

Heat Transfer by Natural Convection Is Enhanced in System with