A vertical cylinder is fitted with a freely-moveable piston of 0.2 m diameter andcontains 0.1 kg of (liquid) water.At the initial State 1, the water remains inequilibrium as saturated liquid at 15 "C with the piston applying a pressure of 7.0 baron the water in the cylinder. The water is then slowly heated until the piston rises toa height of 0.6 m above its initial position to reach the equiliorium at State 2. Thepiston is now held fixed at this location and the cylinder contents are further heatedto increase its pressure to 15 bar at State 3.(a) Find the volume of water at State 1.(b) Show that the cylinder contains saturated (wet) steam at State 2 and determineits dryness fraction at this state.(c) Find the steam temperature at State 3. On a T-v diagram, indicate the processundergone by the contents of the cylinder from State 1 to State 3.

Given: d=0.2 m State 1, Saturated liquid, T1=15oC, P=0.7 MPa state 2, saturated wet steam, P2=0.7…

Find the volume of water at State 1. Show that the cylinder contains saturated (wet) steam at State 2 and determine its dryness fraction at this state. Find the steam temperature at State 3. On a T-v diagram, indicate the process undergone by the contents of the cylinder from State 1 to State 3.

Find the volume of water at State 1. Show that the cylinder contains saturated (wet) steam at State 2 and determine its dryness fraction at this state. Find the steam temperature at State 3. On a T-v diagram, indicate the process undergone by the contents of the cylinder from State 1 to State 3.

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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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

A vertical cylinder is fitted with a freely-moveable piston of 0.2 m diameter and
contains 0.1 kg of (liquid) water.
At the initial State 1, the water remains in
equilibrium as saturated liquid at 15 "C with the piston applying a pressure of 7.0 bar
on the water in the cylinder. The water is then slowly heated until the piston rises to
a height of 0.6 m above its initial position to reach the equiliorium at State 2. The
piston is now held fixed at this location and the cylinder contents are further heated
to increase its pressure to 15 bar at State 3.
(a) Find the volume of water at State 1.
(b) Show that the cylinder contains saturated (wet) steam at State 2 and determine
its dryness fraction at this state.
(c) Find the steam temperature at State 3. On a T-v diagram, indicate the process
undergone by the contents of the cylinder from State 1 to State 3.

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