User Account

All Pages

The us consumed 48 ej of petroleum in 2000 how many

Assignment Help Chemistry
Reference no: EM13638971

Assume that due to dwindling supplies of crude oil and natural gas,the US embarks on a plan to implement the "hydrogen economy" forwhich hydrogen will be generated by electrolysis of water. Thesource of electricity is from photovoltaic (PV) conversion ofsunlight in the southwestern US.

(a) Assume that a flat plate PVsystem is used, with a solar conversion efficiency of 25 percentand a hydrogen
production efficiency of 60 percent. Assume the average annualinsolation in the southwest is 270 watts per square meter.Calculate the annual electrical energy produced in kJ/sq. meter.Calculate the weight of hydrogen (kg/sq. meter) produced per year.

(b) The US consumed 48 EJ of petroleum in 2000. How many square meters of PV collectors would be needed to supply the equivalent amount of energy in hydrogen?

Reference no: EM13638971

Questions Cloud

Two spheres are launched horizontally from a 149-m-high : two spheres are launched horizontally from a 1.49-m-high table. sphere a is launched with an initial speed of 5.2 ms.
A piano has been pushed to the top of the ramp at the back : a piano has been pushed to the top of the ramp at the back of a moving van. the workers think it is safe but as they
Fructose c6h12o6 is a naturally occuring sugar found in : fructose c6h12o6 is a naturally occuring sugar found in honey and many fruit juices. its molar mass is 180.16 gmol. a
How many grams of sodium chloride would you need to add : a.how many grams of calcium chloride would you need to add to 1liter of solution to make a 1 molal solution?b. how many
The us consumed 48 ej of petroleum in 2000 how many : assume that due to dwindling supplies of crude oil and natural gasthe us embarks on a plan to implement the hydrogen
The electric potential energy stored in the capacitor of a : the electric potential energy stored in the capacitor of a defibrillator is 56 j and the capacitance is 130 microf.
A water scientist determined the concentrations of calcium : a water scientist determined the concentrations of calcium and magnesium ions in a sample by titration with 0.06500 m
Determine the thermal efficiency and the rate at which : a power cycle operates between hot and cold reservoirs at 600 k and 300 k respectively. at steady state the cycle
An empty parallel plate capacitor is connected between the : an empty parallel plate capacitor is connected between the terminals of a 8.92-v battery and charges up. the capacitor

Reviews

Write a Review

Chemistry Questions & Answers

  Explain pentanone are constitutional isomers

2-Methylpentane and 4-methyl-2-pentanone are constitutional isomers with the molecular formula C6H12O.each shows a molecular ion peak in its mass spectrum at m/z 100.

  Compute the boiling point in degrees c of a solution made

Calculate the boiling point (in degrees C) of a solution made by dissolving 1.73 g of naphthalene {C10H8} in 67.1 g of benzene. The Kbp of the solvent is 2.53 K/m and the normal boiling point is 80.1 degrees C.

  Define what is the molecular weight of the antibiotic

He begins to characterize this potentially novel molecule by dissolving 9.9 mg of it in 855 mg of cyclohexane and finds the melting point of the resulting solution is 6.30C.

  Compute the energy in kj/mol of the electron

Calculate the energy in kJ/mol of the electron when it is in the n= 1 level. If the energy change is negative, include the minus sign

  Explain what is the free energy change

what is the free energy change (DG) when protons are pumped across the membrane from the side of the membrane with low concentration to the side with high proton concenration at body temperature (37C)? The membrane potential is 0.06. Report your a..

  Explain the transition and inner transition elements

Just based on the orbital occupancy of electrons, is it justifiable to distinguish between the transition and inner transition elements. Should we consider any other factors

  To what energy level does the electron move

An electron in the n = 4 level of an H atom emits a photon of wavelength 97 nm. To what energy level does the electron move?

  State noreaction if no insoluble salt forms

Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms CaCl2(aq)+Mg3(PO4)2(aq)

  Explain the molecular orbital diagram co

The molecular orbital diagram CO in the course notes also applies to the following species

  Explain current is powered by ni-cd rechargable batteries

A portable CD player that draws 175 milliamperes of current is powered by Ni-Cd rechargable batteries. Compute the mass of NiO2 consumed when a disk is played for 115 minutes.

  What is the molarity of sulfuric acid

When 25.0 mL of 0.400 M H2SO4 and 50.0 mL of 0.850 M H2SO4 are mixed, what is the molarity of sulfuric acid in the final solution?

  What is the empirical formula of the unknown compound

An unknown compound contains carbon, hydrogen, oxygen, and sulfur atoms. When a 10.00 mg sample of the unknown compound was combusted, it produced 16.27 mg of CO2, 5.55 mg of water, and 7.90 mg of SO2.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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