Calculate the kw/h of work per kg-mol of hydrogen

Assignment Help Mechanical Engineering
Reference no: EM131231133

A hydrogen/oxygen fuel cell operates with a voltage of 0.7 V with water vapor production. Calculate the kW/h of work per kg-mol of hydrogen and determine the cell efficiency.

Reference no: EM131231133

Questions Cloud

Design a battery electric storage system for a power plant : Design a battery electric storage system for a power plant with 20 MW peak power delivery for a duration of 4 h and estimate the minimum number of batteries and the current during peak operation. Assume that the plant will use 600 A/h batteries, o..
Explain the organizing idea or issue in leadership model : MNG03217 ASSESSMENT - REFLECTIVE ESSAY.  Explain the main organizing idea or issue in your leadership model? E.G. credibility, vision, traits, relationships, etc. Describe what you consider to be the most important traits, skills and tasks of an effe..
Difference in? behavior flexibility and? personality change : Leaders can be more effective if they adapt their behavior to the desires of particular circumstances. Is adjustment or adaptability valuable in a? leader? What is the difference between? "behavior flexibility" and? "personality change?" To determine..
Briefly describe business etiquette and customs : Emphasize the importance of knowing business etiquette and customs of other countries. - briefly describe business etiquette and customs.
Calculate the kw/h of work per kg-mol of hydrogen : A hydrogen/oxygen fuel cell operates with a voltage of 0.7 V with water vapor production. Calculate the kW/h of work per kg-mol of hydrogen and determine the cell efficiency.
Estimate the amount of heat that can be stored overnight : The other is to use a Glauber salt, which undergoes a phase change at approximately 30°C with a heat of fusion of 329 kJ/L. In both instances, a heat exchanger will be necessary in order to meet building code. Discuss the advantages and disadvanta..
Crowd management plan : You are the facility manager for the site of an upcoming major professional sporting event and have received indications that there could be violence between the rival teams’ fans. On the “Crowd Management Plan” page of your group wiki, develop a 1- ..
Estimate the flow rates of hydrogen and oxygen : A neighborhood fuel cell power plant is to be designed for an electric power output of 2000 kW with liquid-water product. Estimate the flow rates of hydrogen and oxygen during peak power production, assuming an 80% efficient power conditioner is u..
Risk categories might be included in the project plan : What kinds of risk categories might be included in the project plan? How might people plan for risks that they cannot identify in the risk management section of the project plan? If there's any references please provide them.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Measured in frequency bands of constant width

White noise has a constant level when measured in frequency bands of constant width. Suppose a noise generator produces white noise over the octave bands 0.5,1,2,4,8 khz. Find the overall un weighted and a-weighted sound pressures if a sound pressure..

  Determine the maximum h reached by the rocket

A model rocket is launched from point A with an initial velocity v0 of 86 m/s. If the rocket's descent parachute does not deploy and the rocket lands 104 m from A

  A 25 hp motor is used to move an 200lbf object across a

a 2.5 hp motor is used to move an 200lbf object across a horizontal surface at a velocity of 22 fts in a time period of

  Determine the scale of the photo

Using photo coordinates for points 4 and GYM on image 5, determine the scale of the photo.

  Calculate heat transferred to the gas

A vessel of volume V = 10m^3 contains carbon dioxide under a pressure of p1 = 1 atm and at temperature of T1 = 273K. As a result of heat transfer to the gas, its temperature increases to T2 = 793K. The volume-specific heat of the gas at constant volu..

  Calculate athe mass of the air that has entered the tank

a 1-m3 rigid tank initially contains air at 150 kpa 300 k. the tank is connected through a valve to a supply line at

  The potential for air pollution by particulate matter pm25

the potential for air pollution by particulate matter pm2.5 andor pm10 is best assessed by constructing the terminal

  Air expands from 100kpa 40 degrees c with volume 75 m3 to

air expands from 100kpa 40 degrees c with volume .75 m3 to 15kpa in a polytropic process with polytropic exponent n.

  Determine which the packages will move

The packages are placed on the belt so that they are in contact with each other and at rest. Determine which, if any, of the packages will move and the friction force acting on each package

  Determine the bending moment at the bottom of its pole

a circular sign has a diameter of 50cm and is subjected to normal winds up to 150kmh at 10 degrees celsius and 100kpa.

  Thermal conductivity kb of the test material

If the standard material is aluminum, with kA = 200 W/m · K, and measurements reveal values of TA = 75°C and TB = 60°C at Xl for Tb = 100°C and Too = 25°C, what is the thermal conductivity kB of the test material?

  Calculate the mass concentration of the aerosol the number

a poly-dispersed aerosol consists of spherical particles within the size range 1.0-10.0 micrometers. the particles are

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd