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Physics with Akhtiar Ali Bullo
  • 4 months ago

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Physics with Akhtiar Ali Bullo
4 days ago
A carnot engine absorbs 52kJ as heat and exhaust 36kJ as heat in each cycle. Calculate: (a) The engine efficiency (b) The work done per cycle in kilojoules
Physics with Akhtiar Ali Bullo
1 week ago
A carnot engine operates between the temperatures 850K and 300K.the engine performs 1200J of work in each cycle, which takes 0.25 sec (a) What is the efficiency of this engine ? (b) What is the average power of this engine ? (c) How much energy is extra
Physics with Akhtiar Ali Bullo
1 week ago
A heat engine performs work of 0.4166 watts in one hour and rejects 4500J of heat to the sink.What is the efficiency of engine ?
Physics with Akhtiar Ali Bullo
2 weeks ago
A heat engine works at the rate of 500kW.The efficiency of the engine is 30%.Calculate the loss of heat per hour.
Physics with Akhtiar Ali Bullo
2 weeks ago
Temperature difference between the surface water and bottom water in Manchester lake might be 5 degree centigrade Assuming the surface water to be at 20 degree celsius.What highest efficiency a steam engine could have if it operates between these two tem
Physics with Akhtiar Ali Bullo
2 weeks ago
In a high pressure steam turbine engine, the steam is heated to 600 degree centigrade and exhausted at about 90 degree centigrade.what is the highest possible efficiency of any engine that operates between these two temperatures?
Physics with Akhtiar Ali Bullo
2 weeks ago
One kilogram of ice at 0 degree centigrade is melted and converted to water at 0 degree celsius.Compute its change in entropy.
Physics with Akhtiar Ali Bullo
2 weeks ago
A carnot engine takes 2000J of heat from a reservoir at 500K does some work and discards some heat to a reservoir at 350K.How much heat is discarded,how much work does the engine do and what is the efficiency ? Physics class 12 numericals
Physics with Akhtiar Ali Bullo
2 weeks ago
How much heat is required to raise the temperature of 1kg of lead from 25⁰C to 100⁰C.Specific heat capacity of lead=0.128 J/g⁰C Physics class 12 numericals solution Inter class physics numerical solution First law of thermodynamics numericals
Physics with Akhtiar Ali Bullo
2 weeks ago
A 50 g piece of copper at 100 degrees centigrade is placed in 200 g of water at 20 degree celsius.If the final temperature of the system is 30 degree centigrade.Calculate the specific heat capacity of copper.(Specific heat capacity of water=4.18 J/g⁰C) Ph
Physics with Akhtiar Ali Bullo
2 weeks ago