c) A piston cylinder assembly initially contains water at 75 kPa and 8 percent quality (x = 0.08) with a volume of 2 m'. The water is then heated until its pressure is 400 kPa. During this process, the pressure and volume are related by P = av +b, where a = 50 kPa/m' and b = -25 kPa. Both 'a' and 'b' are constants. i) Determine the specific volume (m/kg), specific internal energy (k)/kg) and mass (kg) of water at the initial state. ii) Determine the specific volume (m/kg) and specific internal energy (kJ/kg) of water at the
c) A piston cylinder assembly initially contains water at 75 kPa and 8 percent quality (x = 0.08) with a volume of 2 m'. The water is then heated until its pressure is 400 kPa. During this process, the pressure and volume are related by P = av +b, where a = 50 kPa/m' and b = -25 kPa. Both 'a' and 'b' are constants. i) Determine the specific volume (m/kg), specific internal energy (k)/kg) and mass (kg) of water at the initial state. ii) Determine the specific volume (m/kg) and specific internal energy (kJ/kg) of water at the
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 29RQ: If 3000 ft3 of air is crossing an evaporator coil and iscooled from 75F to 55F, what would be the...
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![c) A piston cylinder assembly initially contains water at 75 kPa and 8 percent quality (x = 0.08)
with a volume of 2 m². The water is then heated until its pressure is 400 kPa. During this
process, the pressure and volume are related by P = av + b, where a = 50 kPa/m³ and b = -25
kPa. Both 'a' and 'b' are constants.
i) Determine the specific volume (m/kg), specific internal energy (kl/kg) and mass (kg) of
water at the initial state.
ii) Determine the specific volume (m/kg) and specific internal energy (kJ/kg) of water at the
final state.
ii) Sketch the process on a pressure (kPa) versus volume (m³) diagram and label all properties.
iv) Determine the work done (kJ) and heat transferred (kJ) during the process.
v) Describe another method of calculating the work done other than the method you used in
part (iv) above. Show the calculation to obtain the work done using this second method.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd031ce1a-0981-4f3f-9082-bd3bb3c196a0%2F0183ebde-804b-4876-a69d-b775aa7742b4%2Ff37f8fa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:c) A piston cylinder assembly initially contains water at 75 kPa and 8 percent quality (x = 0.08)
with a volume of 2 m². The water is then heated until its pressure is 400 kPa. During this
process, the pressure and volume are related by P = av + b, where a = 50 kPa/m³ and b = -25
kPa. Both 'a' and 'b' are constants.
i) Determine the specific volume (m/kg), specific internal energy (kl/kg) and mass (kg) of
water at the initial state.
ii) Determine the specific volume (m/kg) and specific internal energy (kJ/kg) of water at the
final state.
ii) Sketch the process on a pressure (kPa) versus volume (m³) diagram and label all properties.
iv) Determine the work done (kJ) and heat transferred (kJ) during the process.
v) Describe another method of calculating the work done other than the method you used in
part (iv) above. Show the calculation to obtain the work done using this second method.
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