What is the thermal effect of a chemical reaction?

What is the thermal effect of a chemical reaction?

Heat of reaction, the amount of heat that must be added or removed during a chemical reaction in order to keep all of the substances present at the same temperature.

What is thermal effect current?

Thermal effect of electric current – The transformation of electric energy to heat energy is called thermal effect of electric current. The substances of a conductor is made up of atoms. In a metallic conductor, there are a large number of free electron moving with different velocity.

How do you find the thermal effect?

Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is called the Joule’s equation of electrical heating.

Is microwave non thermal?

Non-thermal effects are effects that are not due to the increase of thermal energy of the material. Instead, the microwave energy itself directly couples to energy modes within the molecule or lattice.

What are the effects of thermal pollution?

The effects of thermal pollution include decrease the amount of dissolved oxygen in the water, which aquatic life requires, damage to larvae and eggs of fish in rivers, killing off some species of fish and macroinvertibrates that have a limited tolerance for temperature change, and migration of living entities from …

How does temperature affect concentration?

An increase in temperature corresponds to an increase in the average kinetic energy of the particles in a reacting mixture — the particles move faster, colliding more frequently and with greater energy. Increasing concentration tends to increase the reaction rate.

What are the effect of thermal pollution?

Which thermal effect of electric current is used?

Whenever an electric current gets passed through the conductor, it produces heat because of the hindrance caused due to the conductor to the current flowing. The total work done for overcoming this hindrance to the electric current produces heat in the conductor. This is referred to as the heating effect of current.

What is thermal effect of electricity?

The heating effect of the electric current is also known as the thermal effect of the electric current. When an electric current tends to flow in the conductor, electrical energy tends to get expended to overcome the frictional resistance between the molecules and the electrons in the wire.

How does microwave radiation affect bacterial growth?

The nature and extent of the effect depend on the frequency of microwaves and the total energy absorbed by the microorganisms. Low energy, low frequency microwaves enhance the growth of microorganisms, whereas high energy, high frequency microwaves destroy the microorganisms.

What are the causes and effects of thermal pollution?

Thermal pollution also has some natural causes. Geothermal vents and hot springs introduce excess heat into bodies of water. Soil erosion, deforestation, and runoff from paved areas are other artificial sources of hot water. Deforestation eliminates shade, which exposes the water to sunlight.

What is the main reason of thermal pollution?

A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature, the sudden change in temperature decreases oxygen supply and affects the ecosystem.