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Physics with Akhtiar Ali Bullo
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Physics reasoning questions
Physics class 12th reasoning questions
Physics class 12 questions
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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
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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
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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 ?
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A heat engine works at the rate of 500kW.The efficiency of the engine is 30%.Calculate the loss of heat per hour.
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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
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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?
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One kilogram of ice at 0 degree centigrade is melted and converted to water at 0 degree celsius.Compute its change in entropy.
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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
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How much heat is required to raise the temperature of 1kg of lead from 25ā°C to 100ā°C.Specific heat capacity of lead=0.128 J/gā°C Physics class 12 numericals solution Inter class physics numerical solution First law of thermodynamics numericals
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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/gā°C) Ph
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A gas expands from 0.03 mĀ³ to 0.06mĀ³ against a constant pressure of 100kPa.Calculate the work done in both a reversible and an irreversible process and compare the results
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During an isochoric process,the internal energy of a gas increases by 300J.If no work is done,determine the heat added to the system
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A system undergoes an isobaric process where the pressure is kept constant at 150 kPa. If the volume increases from 0.05 mĀ³ to 0.08 mĀ³. Calculate the heat added to the system
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A piston compresses a gas adiabatically. If the initial volume is 0.02 mĀ³ and final volume is 0.01 mĀ³ and the initial pressure is 200 kPa, determine the final pressure. Assume the gas behaves ideally
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How can we get value of Boltzmann's constant
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Quran majeed ke nuzul per kuffar ko bara aitraaz kia tha
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A gas undergoes isothermal expansion at a constant temperature of 300K.If the gas absorbs 500J of heat during the process,calculate the work done by the gas
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Quran majeed kul kitni muddat/waqt me naazil hua
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Quran pak me lafz quran kitni baar aaya hai_ How many times word quran in Quran pak is repeated ?
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A gas undergoes a cyclic process, starting at point A with a volume of 0.02mĀ³ going to B (isochoric heating),then to C (isothermal expansion) and finally back to A. If the heat added during isothermal expansion is 1000J and the heat rejected during isocho
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