Problem 9 A 40-kg iron block initially at 400°C is quenched in an insulated tank that contains 150 kg of water at 20°C. Assuming the water that vaporizes during the process condenses back in the tank, determine the total change during this process. Problem 10 An adiabatic pump is to be used to compress saturated liquid water at 15 kPa to a pressure to 20 MPa in a reversible manner. Determine the work input using (a) entropy data from the compressed liquid table, (b) inlet specific volume and pressure values, (c) average specific volume and pressure values. Also, determine the errors involved in parts (b) and (c).

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Problem 9
A 40-kg iron block initially at 400°C is quenched in an insulated tank that contains 150 kg of water at 20°C.
Assuming the water that vaporizes during the process condenses back in the tank, determine the total change
during this process.
Problem 10
An adiabatic pump is to be used to compress saturated liquid water at 15 kPa to a pressure to 20 MPa in a
reversible manner. Determine the work input using (a) entropy data from the compressed liquid table, (b)
inlet specific volume and pressure values, (c) average specific volume and pressure values. Also, determine
the errors involved in parts (b) and (c).
Transcribed Image Text:Problem 9 A 40-kg iron block initially at 400°C is quenched in an insulated tank that contains 150 kg of water at 20°C. Assuming the water that vaporizes during the process condenses back in the tank, determine the total change during this process. Problem 10 An adiabatic pump is to be used to compress saturated liquid water at 15 kPa to a pressure to 20 MPa in a reversible manner. Determine the work input using (a) entropy data from the compressed liquid table, (b) inlet specific volume and pressure values, (c) average specific volume and pressure values. Also, determine the errors involved in parts (b) and (c).
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