Heat transfer by natural convection is enhanced in system with Options: A . &nbspHigh viscosity B . &nbspHigh co-efficient of thermal expansion C . &nbspLow temperature gradients D . &nbspLow density change with temperature

Heat transfer by natural convection is enhanced in system with

Question

Heat transfer by natural convection is enhanced in system with

Options:

A . High viscosity

B . High co-efficient of thermal expansion

C . Low temperature gradients

D . Low density change with temperature

Answer: Option B

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