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Difference between reversible and irreversible process in thermodynamics with examples

Reversible and irreversible process Reversible process in thermodynamics “A process which can be retracted in exactly reverse order without producing any change in the surroundings is called reversible process”. In the reverse process, the system passes through the same stages as in the direct process but thermal and mechanical effects at each stage are exactly reverse. If heat is absorbed ...

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Kelvin to celsius conversion formula

How to convert kelvin to celsius Temperature on Celsius scale can be converted into kelvin by subtracting 273 from temperature in kelvin scale. Kelvin to celsius formula  C = T (k) – 273 Kelvin to celsius example problems Convert 300 kelvin to Celsius Solution: T = 300 k Formula:       C = T (k) – 273 C = (300 ...

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Celsius to kelvin conversion formula

Convert celsius to kelvin The temperature on kelvin scale can be converted by adding 273 in the temperature Which is in degree centigrade C on Celsius scale. Celsius to kelvin formula          T (k) = 273 + C 0 Celsius to kelvin C = 0 ºC As   T = 273 + C T = 273 + 0 ...

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Difference between latent heat of fusion and latent heat of vaporization of water

Latent Heat of Fusion Heat energy required to change unit mass of a substance from solid to liquid state  at its melting point without change in its temperature is called its latent heat of fusion. When a substance is changed from solid to liquid state by adding heat, the process is called melting or fusion. The temperature at which a ...

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entropy in thermodynamics with examples and properties

What is entropy in thermodynamics? The concept of entropy was introduced into the study of thermodynamics by Rudolph Clausius in 1856 to give a quantitative basis for the second law. It provides another variable to describe the state of a system to go along with pressure, volume, temperature and internal energy. If a system undergoes a reversible process during which ...

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What is convection current?Definition,examples and applications

Radiation heat transfer conduction heat transfer Convection current definition The upward and downward movement of molecules of water or air is called a convection current. What is Atmospheric Convection? Atmospheric convection plays a fundamental role in determining the global climate patterns and in our daily weather variations.Gliders pilots and condors alike seek the convection thermals that ,rising from the warmer ...

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Difference between gas turbine and steam turbine

Idea of gas turbine is very old one,its working principle is an advanced version of wind mill.To achieve efficient working of turbine,the movement of  gas is controlled and directed to blades.The air which is under pressure supplied to turbine by air compressor. In gas turbine initially the air is obtained from atmosphere and compressed in air compressor.The air which is ...

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Difference between impulse turbine and reaction turbine?

Comparison between Impulse turbine and a reaction turbine: Following are the some points of comparison between an impulse and reaction turbine. Impulse Turbines: In impulse turbine steam flows through nozzle and impinges in moving blades. The steam hits on the buckets with Kinetic energy. The steam pressure remains constant. Their relative velocity remains constant. Blades are symmetrical. Number of stages ...

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Difference between diesel and petrol engine

Diesel Engine: Diesel engine only draws air during suction stroke. The fuel is injected in the form of fine spray. Combustion of fuel takes place at constant pressure. The diesel engine are heavier and costlier. Starting of diesel engine is difficult due to high compression ratio. The maintenance cost of it is large. They are low speed engines. They are ...

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Carnot engine and carnot cycle with examples and problems

Carnot Engine Sadi Carnot in 1840 described an ideal engine using only isothermal and adiabatic processes.The carnot engine is free from friction and heat loses. Sadi showed that a heat engine operating in an ideal reversible cycle between two heat reservoirs at different temperatures would be the most efficient. Construction of carnot engine: It consists of following parts: A cylinder ...

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