H.W: - 0.8m of gas at 8bar and 27°C is compressed isothermally until its volume is 4 time the original volume, then its heated at constant pressure to original volume, finally its cooled at constant volume to original condition. Find: - a- the heat transferred. b- Work done c- Change in internal energy. (draw the processes on p-v diagram) Take cp=1.01kj/kg.k, R=0.28kj/kg.k

Q: the containment room. Find the minimum room volume so that the final pressure does not exceed

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Q: A piston/ Cylinder contains 1 kg of water at 20oC with volume 0.1 m3. By mistake someone locks the…

A: Initial specific volume of waterv1=V1m=0.11=0.1 m3kgInitial temeprature of water =200cSince piston…

Q: 2. 1 mole of an ideal gas initially at 300K and 1 atm is heated and allowed to expand re- versibly…

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Q: Assignment #4 A closed container of water is at 700kPa. The mass of the saturated liquid is 1.78 kg,…

A: At P1=700 kPa , initial condition specific volume from steam tablesaturated liquid, vf=0.00110796…

Q: Q4/Find the work done by the steam if 300-L cylinder contain 500 g of steam at 400Kpa now heat…

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Q: - Q.- ome kg of an ideal gas (R=287) irreversible process from Stette -1 [1 bar, 300 k] to Stute -…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.