1. Pressures up to 3000 bar are measured with a dead-weight gauge. The piston diameteris 4 mm. What is the approximate mass in kg of the weights required?2. A gas is confined in a 0.47 m diameter cylinder by a piston, on which rests a weight.The mass of the piston and weight together is 150 kg. The local acceleration of gravityis 9.813 m's-2, and atmospheric pressure is 101.57 kPa.(a) What is the force in newtons exerted on the gas by the atmosphere, the piston,and the weight, assuming no friction between the piston and cylinder?(b) What is the pressure of the gas in kPa?(c) If the gas in the cylinder is heated, it expands, pushing the piston and weightupward. If the piston and weight are raised 0.83 m, what is the work done by thegas in kJ? What is the change in potential energy of the piston and weight?3. Steam at 1400 kPa and 350°C [state 1] enters a turbine through a pipe that is 8 cm indiameter, at a mass flow rate of 0.1 kg: s-1. The exhaust from the turbine is carriedthrough a 25-cm-diameter pipe and is at 50 kPa and 100°C [state 2]. What is the poweroutput of the turbine?4. One mole of gas in a closed system undergoes a four-step thermodynamic cycle. Usethe data given in the following table to determine numerical values for the missingquantities indicated by question marks.Step-200?-6000?-3800??-8003004700???-14005. A gas in a piston-cylinder assembly undergoes an expansion process from an initialpressure of 3 bar and initial volume of to a final volume of . During the expansionprocess the relationship between pressure and volume is given by . Determine theworkdone if6. One mole of a monoatomic ideal gas, in the initial state is subjected to the followingthree processes, each of which is conducted reversibly:A doubling of its volume at constant pressure,Then a doubling of its pressure at constant volumeThen a return to the initial state along the path . Note: V is in litersi.ii.iii.Calculate the heat (Q) and work (W) effects which occur during each of the threeprocesses. Note:Also

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Answered: 1. Pressures up to 3000 bar are…

1. Pressures up to 3000 bar are measured with a dead-weight gauge. The piston diameter is 4 mm. What is the approximate mass in kg of the weights required?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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