Answered: closed rigid container has a volume of…

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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A closed rigid tank has a capacity of 2.5 m3. It holds air at 400 kPa and 18 deg C. Heat is added until the temperature is 350 degC. Determine the heat added in kJ. Given a vacuum pressure of 165 mmHg. The barometric pressure is 745 mmHg. Find the absolute pressure in kPa. What is the amount of dry steam flow to an engine, which is supplied with 4500 kg per hour wet steam with a quality of 80%?
In the figure below a piston is free to move and will not exit the cylinder. Initially the cylinder contains 2kg of air at 1.5bar and 25°CHeat is transferred to the air and the piston rises until it reaches the blocks, at which point the volume is twice the initial volume. More heat is added until the pressureinside the cylinder also doubles. Determine the work done. the amount of heat transfer for this process. Also show the process on a P-v diagram.
In a closed system, the absolute pressure of a gas remains constant at 50 kPa while its volume changed from 20 cm3 to 50 cm3 . Compute the work done.
Air is located inside a cylinder under a piston. The piston-cylinder device with the 5Kg weight just put on top of the piston. The cylinder has a cross-section area of 0.008m². Initially? The air occupies a volume of 0.01 m³ and the pressure of the air is 150kpa. A weight with a madd of 5kg is placed on top of the piston and the piston moves down compressing the gas to a volume of 0.007m³. Determine the amount of work done in the process
A piston-cylinder assembly contains air at 210 kPa and occupies a volume of 0.01m. Thepiston is attached to one end of a spring and the other end of the spring is fixed to a wall. Theforce exerted by the spring on the piston is proportional to the decrease in the length of thespring. The ambient atmospheric pressure is 100 kPa. Now, the air in the cylinder is heated tillthe volume is doubled and at this instant it is found that the pressure of the air in the cylinderis 600 kPa. Sketch the process on p-v diagram and calculate work done by the gas.
In a closed system, volume changes from 1.5 m3to 7.5 m3and heat addition is 200 kJ. Calculate the changein internal energy given the pressure volume relation as P = V2 + (10/V), where P is in kPa and V is in m2
A 10m³ rigid closed cylinder contains a gas with temperature of 100 deg.C and pressure of 300kPa. 50 Joules of heat is added to the system. Determine the change of internal energy of the gas in the system.
A- Four kg of water is placed in an enclosed volume of 1 m3. Heat is added until the temperature is 150°C. Find (a) the pressure, (b) the mass of vapor, and (c) the volume of the vapor.
3. A close rigid container has a volume of 1m3 and holds air at 344.8kPaa and 2730K. Heat is added until the temperature is 6000K. Determine the change in internal energy. Draw a figure or FBD that will support the problem. Explain each step by step formula.
A glass is cleaned in hot water and reaches a temperature of 50°C. The glass is placed on a table bottom up. The room temperature air trapped in the glass heats up to 46°C, and some of the air escapes, so that the resulting pressure in the glass is 2kPa higher than the ambient pressure of 100kPa. The weight of the glass now seals the volume. The glass and air are let to cool to 20°C. What is the pressure inside the glass?
One kilogram of air is compressed from a volume of 1.0 m and a pressure of 100 kPa to a volume of 0.147 m and a pressure of 1000 kPa. Assuming that the compression follows the law pu" the work done during the compression process. = constant, find
Please solve this carefully

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closed rigid container has a volume of 1 m3