Question

10. 'Convection' is the primary mode of heat transfer in which of the following?
a. Solids and liquids
b. Liquids and gases
c. Gases and solids
d. Only liquids ​

Answer 1

Answer:

liquids and gases

Explanation:

make me brain list

Answer 2

$\sf\huge\bold{Answer:}$

$\fbox{option\:b)\:is\:correct\:answer}$

Explanation :

• Convection is the transfer of heat by circulating it through air or liquids

Applications of convection -

• Car engines are cooled by convection currents in the water pipes.
• Land and sea breezes are caused due to convection currents.
• Rising air over the land are convection currents and are used by glider pilots to keep their gliders in the sky.

Types of convention :

• There are two types of convection:

1. natural convection
2. forced convection.

• Formula :

$\huge\bf\red{Q=hA\triangle T}$

where,

Q=heat transfer rate

h=convection heat-transfer coefficient

A=exposed surface area

∆T= temperature difference