Resolve the force F1 and F2 into components acting along the u and v axes.
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Resolve the force F1 and F2 into components acting along the u and v axes.
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- Choose the true statement A)Clausius statement talks about refrigerators/heat pumps B)Refrigerator is used for cooling purposes but heat pump for heating purposes C)All of them D)Directionality of the processes is given by 2nd law of thermodynamics E)Kelvin-Planck statement talks about conversion of energy from one type to anotherFirst Law of Thermodynamics Law of Conversion Number 6Which of the following is the correct statement? a. Irreversible engines have maximum efficiency b. The increase in entropy is obtained from a given quantity of heat at a low temperature c. The entropy represents a maximum amount of work obtainable per degree drop in temperature d. All the reversible engines have the same efficiency e. All the reversible and irreversible engines have the same efficiency f. The change in entropy may be regarded as a measure of the rate of the availability of heat for transformation into work g. All engines are designed as reversible to obtain maximum efficiency
- In a power plant operating with water and steam, the following measurements and observations were done at various stages along the system. the pressure is 150 kPa and the enthalpy, h is 1580.115 (kJ/kg) For this case, the specific vvolume is most likely: 0.001070 2.01302 1.1594 0.5802 0.001053why does h[11] = h[10]= h[12], thank you so muchHeat transfer is always from higher reservoir to a lower reservoir, and not the opposite, because: Higher energy means more capability to diffuse Higher energy means capability to be constant Higher energy means atoms and molecules are in ground state Lower energy means system is in equilibrium None of the above
- Kelvin Planck's law deals with A. conservation of heat B. conversion of work into heat C. conservation of work D. conversion of heat into workHow much heat in Btu must be transferred to 42lb of air to increase the temperature by 2500F at constant pressure?a. 2517.7057Btu b. 2215.5810Btu c. 2397.8149Btu d. 2110.0771Btu(Answer true or false for the following statements) If a closed system undergoes an isochoric process, the thermodynamic work for this process is always zero. A closed system undergoes a process inside a rigid container. During this process, the thermodynamic work can only be zero. If a closed system undergoes an adiabatic process, the thermodynamic work for this process is always zero.