Khartz Di
@khartz-di-5entBw Member
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Posted #Threads
Change in entropy in a polytropic process
how can we show that the change in entropy of an ideal gas undergoing a polytropic process 1-2 is given by S2 - S1 = mCv...
2 replies -
Posted #Threads
Thermodynamics and heat transfer
if we measure the boiling point of water(degree celcius) at different vacuum pressure(below atmospheric pressure) in an well constructed cylinder with vacuum gauge and thermometer...
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Posted #Threads
Pump Calculations
A farmer uses a centrifugal pump to pump the river water to a storage tank located in his farm 20 m above the river . If...
5 replies -
Posted #Threads
Car engines efficiency
not familiar with car engines.........If the volumetric efficiency of an engine remains constant, and the carburetion is adjusted to maintain the same air-fuel ratio, how can...
1 reply -
Posted #Threads
Forced vortex flow
why is vortex fow important and its application in mechanical engineering??
4 replies -
Posted #Threads
Automobile with in high elevation
why do automobile suffer power loss with increase i n altitude???
7 replies -
Posted #Threads
Direction of work and heat interaction
A personal computer is to be examined from a thermodynamic perspective. Determine the direction of the work and heat interactions (in or out) when (a) keyboard...
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State and Process of Air
How can we describe the state of the air in the atmosphere and what kind of process does this air undergo from a cool morning to...
4 replies -
Posted #Threads
Ideal and Real Gas relationship
At high pressures and lower temperatures, the gas molecules are more closely packed together and consequently intermolecular forces become more important. In such cases, the ideal....
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