* A vertical piston-cylinder device contains water and is being heated on top of a range. During the process, 65 Btu of heat is transferred to the water, and heat losses from the side walls amount to 8 Btu. The piston rises as a result of evaporation, and 5 Btu of work is done by the vapor. Determine the change in the .energy of the water for this process 61 Btu 52 Btu 60 Btu O 55 Btu O

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter3: Transient Heat Conduction
Section: Chapter Questions
Problem 3.12P
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* A vertical piston-cylinder device contains
water and is being heated on top of a
range. During the process, 65 Btu of heat
is transferred to the water, and heat
losses from the side walls amount to 8
Btu. The piston rises as a result of
evaporation, and 5 Btu of work is done by
the vapor. Determine the change in the
.energy of the water for this process
61 Btu O
52 Btu O
60 Btu O
55 Btu O
Transcribed Image Text:* A vertical piston-cylinder device contains water and is being heated on top of a range. During the process, 65 Btu of heat is transferred to the water, and heat losses from the side walls amount to 8 Btu. The piston rises as a result of evaporation, and 5 Btu of work is done by the vapor. Determine the change in the .energy of the water for this process 61 Btu O 52 Btu O 60 Btu O 55 Btu O
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