Explain the working of a refrigerator, Physics

Explain the working of a refrigerator

A refrigerator is the reverse of a heat engine. Here the working substance extracts heat Q2 from the cold reservoir at temperature T2, some external work W is done on it and heat Q1 is released to the hot reservoir at temperature T1.

In a refrigerator the working substance (usually, in gaseous form) goes by the following steps: 

(a)  Sudden expansion of the gas from high to low pressure which cools it and changes it into a vapour-liquid mixture, 

(b)  Absorption by the cold fluid of heat from the region to be cooled changing it into vapour.

(c)  Heating up of the vapour because of external work done on the system, and  

(d)  Release of heat by the vapour to the surroundings, bringing it to the initial state and completing the cycle.


Posted Date: 6/29/2013 1:41:45 AM | Location : United States

Related Discussions:- Explain the working of a refrigerator, Assignment Help, Ask Question on Explain the working of a refrigerator, Get Answer, Expert's Help, Explain the working of a refrigerator Discussions

Write discussion on Explain the working of a refrigerator
Your posts are moderated
Related Questions
I want to measure H, not B The magnets in question are permanent magnets (large Neo or SmCo magnets), not coils ============================== Steel _______

Question: What all are able to the power P possibly represent in the expression P = IV where I is current and V is voltage? Answer: The small definition for power is th

Capacitors in series: When three capacitors are connected in series.  If one electron moves from the negative terminal of the cell to the right hand plate of C 3 , and one elec

Applications of cement mortar 1. It is used to carry out pointing and plaster works on exposed surface of masonry. 2. It is used to bind the building units like bricks, ston

Q. What is the neutron? Answer:- A neutron is a subatomic particle it's one of the building blocks of the atom. It has a mass of in relation to 1.675 x 10-27 kg. Its spin

The rate of flow of energy or particles across a given surface.

It describes the temperature above which the material loses its spontaneous polarization and piezoelectric characteristics.

Question: A person is doing effort to locate the image of an object of a plane mirror by means of a ray-tracing diagram. The person draws a ray by the object which strikes the

For a very every case the moment of inertia of a one particle about an axis is given by,   I = mr 2 Here, m is the mass of the particle and r its distance from the axis under

What type of material in optical fibres used? Material in optical fibres: Optical fibres are generally made along with two kinds of materials that are glass (silica) and pla