Calculate how much energy (kJ) is required to heat a liter of water from 30°C to saturated liquid at normal boiling point.
Calculate how much energy (kJ) is required to heat a liter of water from 30°C to saturated liquid at normal boiling point.
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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![Calculate how much energy (kJ) is required to heat a liter of water from
30°C to saturated liquid at normal boiling point.
Using specific heat, calculate the change in internal energy (kJ) when
400 kmol of water at 150°C (1bar) is cooled at constant pressure until it
reaches its saturated vapor condition and compare with value
calculated from steam table.
10kg of water at 100 bar and 350°C is cooled at constant pressure in a
piston cylinder system until its specific volume reaches 0.00112 m/kg.
a) Draw the process on a Pv diagram
b) Using steam table, find the final T (°C), AU and AH (kJ).
b) Using equations, calculate AU(kJ)
c) Calculate boundary work (kJ).
d) Do energy balance to find Qnet (kJ)?
e) What is the final volume (m³) of the system?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F84edb1a0-e382-4ff7-9c70-1293cdd9b5ca%2Fe9295196-7fc4-4f25-b847-ee7cdea0b796%2Fcyz28mz_processed.png&w=3840&q=75)
Transcribed Image Text:Calculate how much energy (kJ) is required to heat a liter of water from
30°C to saturated liquid at normal boiling point.
Using specific heat, calculate the change in internal energy (kJ) when
400 kmol of water at 150°C (1bar) is cooled at constant pressure until it
reaches its saturated vapor condition and compare with value
calculated from steam table.
10kg of water at 100 bar and 350°C is cooled at constant pressure in a
piston cylinder system until its specific volume reaches 0.00112 m/kg.
a) Draw the process on a Pv diagram
b) Using steam table, find the final T (°C), AU and AH (kJ).
b) Using equations, calculate AU(kJ)
c) Calculate boundary work (kJ).
d) Do energy balance to find Qnet (kJ)?
e) What is the final volume (m³) of the system?
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