Maximum efficiency of an engine working between temperatures T2 and T1 is given by the fraction of the heat absorbed by an engine which can be converted into work is known as efficiency of the heat engine.
Mathematically,
Efficiency, η = (T2 - T1) / T2 ...

Maximum efficiency of an engine working between temperatures T2 and T1 is given by the fraction of the heat absorbed by an engine which can be converted into work is known as efficiency of the heat engine.
Mathematically,
Efficiency, η = (T2 - T1) / T2 = ...

ContinueComments Off on Carnot engine working between a source temperature of T_{2} and sink temperature of T_{1} has efficiency of 25%. If the sink temperature is reduced by 20^{o} C, the efficiency is increased to 30%. Find the source and the sink temperature.

Maximum efficiency of an engine working between temperatures T2 and T1 is given by the fraction of the heat absorbed by an engine which can be converted into work is known as efficiency of the heat engine.
Mathematically,
Efficiency, η = (T2 - T1) / T2 ...

ContinueComments Off on A Carnot engine converts one sixth of the heat input into work. If the sink temperature is reduced by 62^{o} C, the efficiency gets doubled. Find the source and the sink temperature.

Maximum efficiency of an engine working between temperatures T2 and T1 is given by the fraction of the heat absorbed by an engine which can be converted into work is known as efficiency of the heat engine.
Mathematically,
Efficiency, η = (T2 - T1) / T2
...

ContinueComments Off on Calculate the maximum efficiency of an engine operating between 120^{o} C and 35^{o} C

Carnot theorem states that no heat engine working in a cycle between two constant temperature reservoirs can be more efficient than a reversible engine working between the same reservoirs. In other words it means that all the engines operating between a given constant temperature source ...

Efficiency of a heat engine:
The fraction of the heat absorbed by an engine which can be converted into work is known as efficiency of the heat engine.
Mathematically,
Efficiency, η = w / q2 = (T2 - T1) / T2 ……………. (1)
As (T2 - T1) / T2 ...

ContinueComments Off on Calculate the net efficiency of a Heat Engine?

Cyclic process:
When a system returns to its original state after completing a series of changes, then it is known that a cycle is completed. This process is known as cyclic process. In a cyclic process the initial and the final state is same. As the ...

Spontaneous processes:
A spontaneous process is one in which heat is transferred through a finite temperature. Spontaneous process is also known as irreversible process because these processes take place at very fast rate. All the natural processes are spontaneous processes.
Examples of irreversible processes are as follows:
1) Relative ...