Answered: How much liquid water in kg is in a…

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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To determine the level of ethanol (ρ = 790 kg/m3 ) in a reservoir, a technician verified that a pressure gauge installed at the base of the reservoir indicated a pressure of 17.6 kPa. This level can be estimated at: a.22,28 m b.4,54 m c.2,27 m d.17,60 m e.2,23 m
3. A 2-kg steam water mixture at 1.0 MPaa is contained in an inflexible tank. Heat is added until the pressure rises to 3.5 MPaa and the temperature to 400 °C. Determine: a) Heat transferred (kJ), b) AH (kJ), c)AS (kJ/k)
1. A certain ideal gas X has molecular weight of 10 g/mol and specific heat ratio of 2. Initially, X has pressure of 200kPa and volume of 2m3. The pressure was doubled during heat transfer. Find the heat transfer if it underwent a process described by ( a. n=infinity b. n=Cp/Cv C. n=3
Problem 2: There is a piston cylinder device that contains 0.03 kg of saturated liquid water. The water or H;O is heated to a final temperature of 300 °C. The piston has a mass of 10.0586 kg and a cross sectional area of 0.001m. The atmospheric pressure is 101.325 kPa. The piston can move upward as water is heated. a) Determine the pressure inside the cylinder by applying Newton's law in vertical direction b) What is the initial temperature of the water if the pressure inside the piston cylinder device is 200 kPa? c) Determine the amount of heat transfer required for the process m-5kg Water Figure for Problem 2
As more heat is transferred, part of the saturated liquid vaporizes (saturated liquid–vapor mixture).
A) Steam enters a turbine at a pressure of 30 bars, temperature of 400 degrees Celsius and exits at a pressure of 1bar. The turbine is isentropic, how much power is produced per unit mass flow rate, w. Their is no change in kinetic or potential energy and no heat transfer. Answer in kJ/kg B) Steam enters a turbine at a pressure of 30 bars, temperature of 400 degrees celsius and exits at a pressure of 1bar. If the turbine is operating at 95% isentropic efficiency, how much power is being produced per unit mass flow rate, w. Their is no change in kinetic or potential energy and no heat transfer. Answer in kJ/kg C) Steam enters a turbine at a pressure of 30 bars, temperature of 400 degrees celsius and exits at a pressure of 1 bar. If the turbine at 95% isentropic efficiency, what is the quality of the steam exiting the turbine? Their is no change in kinetic or potential energy and no heat transfer.
4. A vessel with 8.0 g of helium gas follows the two-step process, 123, shown in the figure to the right. a) Qualitatively describe what is being done to the gas vessel in the two processes. b) Find the values of V₁, V3, P2, and T3. P2 2 atm 0 P 657°C 2 37°C- 1 V₁ Isothermal 3 V3 V
6- Just at the end of vaporization, substance is called a. saturated mixture b. saturated vapor c. saturated liquid d. superheated vapor
How much liquid water in kg is in a quality of x= 0.78, say the total mass of the liquid-vapor mixture is 50 lbm? Select one: O a 17.12 kg O b. 16.86 kg O c. 18.78 kg O d. 17.687 kg
11. An empty flask has a mass of 48.283g and 48.612g when filled with acetone vapor at 80°C and728mmHg. If the volume of the flask is 227.5mL, what is the molecular weight of the acetone?a. 43.7497kg/kmol b. 38.6978kg/kmol c. 42.4760kg/kmol d. 43.8075kg/kmol
The cp of an ideal gas can be determined from a knowledge of cv and R.
Find the specific volume of an ammonia gas if it has a temperature and pressure of 70°C and220kPaa.a. 0.6397m3 /kg b. 0.7628m3 /kg c. 0.7851m3 /kg d. 0.7197m3/kg

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How much liquid water in kg is in a quality of x= 0.60, say the total mass of the liquid-vapor mixture is 65 lbm? a.10.23 kg b.13.22 kg c.18.67 kg d.11.79 kg