Question

Convection coefficient depends upon

• A. $\text{Density}$
• B. $\text{Specific heat}$
• C. $\text{Thermal conductivity}$
• D. $\text{All the above}$

Answer 1

The correct option is D $\text{All the above}$

From the definition,
$\frac{Q}{t}\propto A(T-T_0)$
$\Rightarrow \frac{Q}{t}=hA(T-T_0)$
Proportionality constant ${}^{\prime }{h}^{\prime }$ is known as convection coefficient which depends on properties of fluid such as density, viscosity, specific heat and thermal conductivity.