Determine the final pressure and temperature. The final pressure is kPa.The final temperature is ºC. A piston-cylinder device contains 50 kg of water at 250 kPa and 25°C. The cross-sectional area of the piston is 0.1m². Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.26 m³,the piston reaches a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the pistonrises 20 cm more.NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.TeLA = 0.1 m²H₂Om = 50 kg

Answered: A piston-cylinder device contains 50 kg…

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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During the process of raising steam in a boiler, when the pressure was 1.9 bar gauge the temperature inside the boiler was130°C and when the pressure was 6.25 bar gauge (0.625 MPa) the temperature was 165°C. If the volume of the steam space is constant at 4.25 m. Calculate the mass of steam. Steam Properties : Steam at 130°C P 2.7 bar Vg 0.6686 m3/kg 5.356 kg 4.356 kg 6.356 kg 3.356 kg
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?
0.03-m of air is contained in the spring-loaded piston-cylinder device shown in Fig. P4-53. The spring constant is 875 N/m, and the piston diameter is 25 cm. When no force is exerted by the spring on the piston, the state of the air is 2250 kPa and 240°C. This device is now cooled until the vol- ume is one-half its original size. Determine the change in the internal energy and enthalpy.
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.
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.
A frictionless piston-cylinder device initially contains 200L of saturated liquid refrigerant-134a. The piston is free to move and its mass is such that it maintains a pressure of 900 kPa on the refrigerant. The refrigerant is now heated until its temperature rises to 70C. Calculate the work done during this process. ANS. 5571 KJA fixed mass of an ideal gas is heated from 50 to 80°C at a constant pressure of (a) 1 atm and (b) 3 atm. For which case do you think the energy required will be greater?
Solve this question very carefully write clearly and circle the final answer for the” final temperature” in Celsius And The volume of the tank for a final pressure of 10kpa in units of m^3
A piston–cylinder device contains 0.05 m3 of a gas initially at 200 kPa. At this state, a linear spring that has a spring constant of 150 kN/m is touching the piston but exerting no force on it. Now heat is transferred to the gas, causing the piston to rise and to compress the spring until the volume inside the cylinder doubles. If the crosssectional area of the piston is 0.25 m2 , determine (a) the final pressure inside the cylinder, (b) the total work done by the gas, and (c) the fraction of this work done against the spring to compress it.
A room is filled with saturated steam at 100°C. Now a 5-kg bowling ball at 25°C is brought to the room. Heat is transferred to the ball from the steam, and the temperature of the ball rises to 100°C while some steam condenses on the ball as it loses heat (but it still remains at 100°C). The specific heat of the ball can be taken to be 1.8 kJ/kg C. Solve for the mass of steam that condensed during this process.
1m° of saturated liquid water at 200°C is expanded until its quality is 80 percent and the pressure is equal to 600 kPa. Determine the following: The initial pressure (P1 (kPa)) is equal to: The initial specific volume (v1(m³/kg)) is equal to: The final specific volume (v2(m/kg))) is equal to: The final temperature (°C) is equal to The water mass (m (kg)) is equal to: The total work produced by this expansion, in MJ is equal to: Activate
A piston of mass 60 kg sits in a cylinder containing water vapour. The diameter of the piston is 20 cm. There is a spring connected above the piston which is originally unstretched, and has a spring constant of 50 kN/m. The piston moves upwards a distance of 5 cm while 200 J of heat is added. Calculate the change in internal energy of the water vapour.
A bladder accumulator has an expanded gas volume of 4 liter and is precharged with nitrogen (u-1.4) to 3 MPs. If the gas in the accumulator is isothermally compresses to a final volume of 2 liters, how much energy is stored in the accumulator?

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