# What are the conditions in which conduction can occur?

## What are the conditions in which conduction can occur?

It takes place through either heat or electricity. Conduction can occur in liquid, gaseous or solid objects. For conduction to take place between two objects, they must be touching each other. For conduction to occur between atoms within the same object, they must also be touching (or nearly touching).

### What condition is needed for heat transfer to take place between objects?

What is needed for heat transfer to take place is a difference in temperature between two objects. Without this difference, no heat transfer can take place. Heat can be transferred in three ways: by conduction, by convection, and by radiation.

#### What are two conduction methods?

The two ways that conduction can occur is through heat transfer or electricity transfer.

What are two conditions necessary for conduction of heat?

(i) The two objects should be in direct contact with each other. (ii) The temperature of the two objects should be different. Heat will flow from a hotter object to a cooler object.

What are the conditions necessary for conduction to take place?

The condition required for conduction of heat is the temperature difference between the ends of material (rod or any other form). Also, for conduction between two bodies, the bodies need to be in contact, along with having a temperature difference of course.

## Where does the heat conduction equation come from?

The heat equation is derived from Fourier’s law and conservation of energy. The Fourier’s law states that the time rate of heat transfer through a material is proportional to the negative gradient in the temperature and to the area, at right angles to that gradient, through which the heat flows.

### When is heat conduction said to be steady?

Heat conduction in a medium, in general, is three-dimensional and time depen- dent, and the temperature in a medium varies with position as well as time, that is,T T(x,y,z,t). Heat conduction in a medium is said to be steadywhen the temperature does not vary with time, and unsteadyor transientwhen it does.

#### When does heat conduction occur at the plane of symmetry?

Such a condition can also exist at the plane of symmetry. This condition is encountered at a solid boundary when there is equality between heat transfer to the surface by conduction and that leaving the surface convection. The convective boundary conditions described above can be expressed in the compact from as-