Statements of second law of thermodynamics, Mechanical Engineering

Assignment Help:

(a) Show that two statements of Second Law of thermodynamics are equivalent to each other.

(b) A house that was heated by electric resistance heater consumed 1200 KWh of electric energy in a winter month. If this house was heated instead by heat pump that has an average COP of 2.4, calculate how much money the home owner would have saved that month. Assume a price of Rs 8.5/KWh for electricity.


Related Discussions:- Statements of second law of thermodynamics

Calculate density of completely dry oak, The density of a sample of oak is ...

The density of a sample of oak is 0.90 g/cm^3. Calculate             a. the density of completely dry oak             b. the percent water in the original sample

MRP 1, Advantages and disadvantages

Advantages and disadvantages

Use roller support - steel trusses of bridges, Use roller support - steel t...

Use roller support - steel trusses of bridges: Explain, why do we use roller support in case of steel trusses of bridges? Sol. : In the bridges most of time external f

Find the resultant hydrostatic force, Question. Consider the triangular lam...

Question. Consider the triangular laminar D for given b and h shown below. (a) Find x L (s) and x R (s), the left and right ends of the elementary strip, of thickness ds, a

Determine the final temperature in piston – cylinder, Determine the final t...

Determine the final temperature in piston – cylinder: One Kg of steam at 1.5MPa and 400ºC in a piston - cylinder device is cooled at constant pressure. Determine the final te

Hardness testing, After final PWHT, the hardness of the deposited weld meta...

After final PWHT, the hardness of the deposited weld metal and heat affected zone (HAZ) shall be examined. Hardness values shall not exceed 200 BHN. Heat treatment shall be perfo

Air filter cleaning steps, Air Filter Cleaning :  Air filter filters the a...

Air Filter Cleaning :  Air filter filters the air, which enters into the carburetor. Then, this air mixes with fuel and this mixture enters into engine. If air is not clean, it wi

Force on string - mechanics, Force on String: A string ABCD , attach...

Force on String: A string ABCD , attached to the two fixed points A and D has two weight of 1000N each attached to it at points B and C . The weights rest with portio

Find out the strain energy stored, Find out the strain energy stored: ...

Find out the strain energy stored: A close coiled spring is subjected into an axial moment of 16 N-m. If the spring contains 15 coils with wire diameter of 10 mm and mean coil

Clutch free play adjustment of motorcycle, Clutch Free Play Adjustment : A...

Clutch Free Play Adjustment : A smooth operation of clutch ensures the smooth running of motorcycle; hence it is essential to maintain a proper clutch free play. STEPS

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