Showing posts with label termodynamics. Show all posts
Showing posts with label termodynamics. Show all posts

Sunday, 30 March 2014



The Brayton cycle is a thermodynamic cycle that describes the workings of a constant pressure heat engine. Gas turbine engines and airbreathing jet engines use the Brayton Cycle. Although the Brayton cycle is usually run as an open system (and indeed must be run as such if internal combustion is used), it is conventionally assumed for the purposes of thermodynamic analysis that the exhaust gases are reused in the intake, enabling analysis as a closed system.

Thursday, 27 March 2014



Thermodynamics is the physical science that studies effect on materials bodies, also consider the heat transfer and work done on or by the bodies.




1.)State Third Law of Thermodynamics.
Ans.: Third Law of Thermodynamics states that entropy of the system approaches constant value as the temperature approaches absolute zero.
2.)What is Charles' law?
Ans.: The volume of a given mass of an ideal gas is directly proportional to its temperature on the absolute temperature scale (in Kelvin) if pressure and the amount of gas remain constant.
It is also known as the law of volumes.
3.)What is enthalpy?
Ans.: Enthalpy is the heat content of a chemical system. It is a measure of total energy of a thermodynamic system.
4.)Differentiate between Intensive and Extensive properties of a system.
Ans.: Intensive properties are those that are independent of the size of the system such as temperature, pressure and density.
Extensive properties are those that are depend on the size of the system such as mass, volume and total energy.