A monatomic ideal gas undergoes a cyclic transformation as shown. a) When the gas goes from A to B, what is the change in its internal energy AEA B? b) When the gas goes from A to B, how much work WA B is done by it on its environment? 3po • Hint: The area of an ellipse with semimajor axis v and semiminor axis w is given by 2po puw. c) How much heat QAB flows into the gas during the transformation A-B? Po d) Answer the same questions for the return transformation B A. V. 3Vo 5V. e) What is the net work done by the gas on its environment over the cycle? *

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Fill the balks with the correct word/ words a- When the temperature increases, the Viscosity (u) of the liquid b- Water Turbines can be classified into. c- The unit of Specific gravity is d- For turbulent flow, Reynold Number is and e- A pump is a rotodynamic pump that converts mechanical energy to hydraulic pressure energy. f- turbine can be used in rivers, man-made channels, tidal waters. g- The First Law of Thermodynamic state that_ is a change in the system from one equilibrium state to another. transfer heat from low to high temperature stages by using h- i- mechanical work. j- Adiabatic process means

The name given to a machine that violates the laws of Thermodynamics is called a , while that that violated the second law of thermodynamic is called a and that that violates the first law of thermodynamics is called a NB: write answers in words and not abbreviation.

From the following identify the true statement relating to the term Preventive maintenance The maintenance done after the failure of machine and can't save energy during the process. O The maintenance done before the failure of machine and can save energy during the process. O The maintenance done before the failure of machine and can't save energy during the process. The maintenance done after the failure of machine and can save energy during the process.

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linear hydraulic actuators consists of a hollow cylinder that contains fluid and a piston, when pressure is applied onto the piston, objects can be moved by the force produced.True or flase