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limitations of first law of thermodynamics:
There are some limitations of First Law of Thermodynamics.
1. When a closed system undergoes thermodynamic cycle, the average heat transfer is equal to average work transfer. The law does not specify direction of flow of heat and work nor gives any condition under which transfer of energy take place.
2. The heat energy and mechanical work are convertible mutually. The mechanical energy can be totally converted into heat energy but only a part of heat energy is converted into mechanical work. Thus, there is limitation on the amount of conversion of one form of energy into another form.
Screw Driver: Screwdrivers of different sizes are used to tighten or loosen screws. These are made of vanadium steels. A typical screw driver is shown in Figure. Fig
The greasted and least resultant of forces performing on a body are 35 KN and 5 KN respectively. Calculate the magnitude of forces. What could be the angle between these forces if
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A cart is moving along a track at a constant velocity of 5 m/s as shown. Water (? = 1000 kg/m3) issues from a nozzle at 10 m/s and is deflected through 180° by a vane on the cart.
Natur e of Distribution of Bending Stress Figure Nature of stress distribution in section of a beam It will be proved that bending stress at any layer of section o
how to solve numerical of proell governor
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