Calculate energy and entropy - thermodynamics, Mechanical Engineering

Assignment Help:

Thermodynamics. Justify that it is the science to calculate energy, energy and entropy.

Sol : Thermodynamics is science which deals with conversion of heat into mechanical energy. It is  based upon observations of general experience, that have been formulated into thermodynamic laws. These laws govern principles of energy conversion. The applications of thermodynamic laws and principles are found in all the fields of energy technology, especially in steam and nuclear power plants, air conditioning, gas turbines, refrigeration, gas dynamics, internal combustion engines jet propulsion, chemical process plants, compressors, and direct energy conversion devices.

In general thermodynamics contains four laws;

1. Zeroth law: it deals with thermal equilibrium and establishes concept of temperature.

2. The First law: throws introduces the concept of internal energy.

3. The Second law: indicates limit of converting heat into work and introduces the principle of increase of entropy.

4. Third law: defines absolute zero of entropy.

These laws are based on experimental observations and have no mathematical proof. Similar to all the physical laws, these laws are based on logical reasoning.

Thermodynamics is study of energy, energy and entropy.

The entire heat energy cannot be converted into mechanical energy by machine. Some portion of heat at low temperature has to be librated to the environment.

The portion of heat energy, that is not available for conversion into work, can be measured by entropy. The part of heat, that is available for conversion into work, is called as energy.

Hence, thermodynamics is science, which calculates energy, energy and entropy.


Related Discussions:- Calculate energy and entropy - thermodynamics

Thermodaynamic, Ask question #MiThe steam that leaves the super-heater is e...

Ask question #MiThe steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam from the exit of the HP turbine is

Compute the force exerted by the tires on the road, Compute the force exert...

Compute the force exerted by the tires on the road: An automobile of mass 1500 kg traverses a 500 m curve at a constant speed of 50 kmph. Supposing no banking of the curve,

What is the specific weight of the timber, (Buoyancy; force & moment balanc...

(Buoyancy; force & moment balance) A partially submerged, homogeneous timber is 0.15m by 0.35m in cross-section. What is the specific weight of the timber and the tension in the r

Spring, what is the geometry of a leaf spring

what is the geometry of a leaf spring

Find speed for two hours with hss tools, Find speed for two hours with HSS ...

Find speed for two hours with HSS tools Find speed for two hours tool life for dry machining of free cutting mild steel with HSS tool. Solution From Table 3, a value o

# ic engines, what are the di #Minimum 100 words accepted#

what are the di #Minimum 100 words accepted#

About moment of inertia, what is the difference between polar and mass mom...

what is the difference between polar and mass moment of inertia?

Metal transfer in co2 welding, METAL TRANSFER IN CO2 WELDING In CO 2 wel...

METAL TRANSFER IN CO2 WELDING In CO 2 welding, two distinct types of metal transfers are identified viz. short circuiting transfer and free flight globular transfer. Short Cir

Service and maintenance procedures, Service and Maintenance Procedures, you...

Service and Maintenance Procedures, you have studied detailed procedure of motorcycle service and maintenance and points to be remembered while servicing. In the next course, you s

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd