A cylinder containing the air comprises the system. Cycle is completed as follows : (i) 82000 Nm of work is done by the piston on the air during compression stroke and 45 kJ of heat are rejected to the surrounding. (ii) During expansion stroke 100000 Nm of work is done by the air on the …
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Air enters a compressor at 105 Pa and 25 °C having volume of 1.8 m3/kg and is compressed to 5 x 105 Pa isothermally. Determine : (i) Work done ; (ii) Change in internal energy ; and (iii) Heat transferred. Air enters a compressor at 105 Pa and 25 °C having volume of 1.8 m3/kg …
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A container is divided into compartments by a partition. The container is completely insulated so that there is no heat transfer. One portion contains gas at temperature T1 and pressure p1 while the other portion also has the same gas but at temperature T2 and pressure p2. How will the First Law of Thermodynamic, conclude …
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When a stationary mass of gas was compressed without friction at constant pressure its initial state of 0.4 m3 and 0.105 MPa was found to change to final state of 0.20 m3 and 0.105 MPa. There was a transfer of 42.5 kJ of heat from the gas during the process. How much did the internal …
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0.3 kg of nitrogen gas at 100 kPa and 40 °C is contained in a cylinder. The piston is moved compressing nitrogen until the pressure becomes 1 MPa and temperature becomes 160°C. The work done during the process is 30 kJ. Calculate the heat transferred from the nitrogen to the surroundings. cv for nitrogen = …
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