A metal tank contains air at 20 C and 400 kPa. The tank volume is 5 m3 . It is connected through a valve to another tank containing 7 kg of air at 40 C and 300 kPa. After 10 minutes, the valve is opened, and the whole system will reach thermal equilibrium with the surroundings (T= 25 C). Determine the volume of the second tank and the final pressure of air. Explain the relationships between system constants for a perfect gas.

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Q: A load of 500 N is applied on a cylindrical wire of 3.0 mm diameter and 2.5 x 10* mm length. The wir...

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Q: Find the values of mean, median, variance and standard deviation.

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Q: In the figure shown below, set F1 710 lb, F2 = 120 lb, F3 = 320 lb, the shaft diameter to 0.5 in, th...

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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.