If you had an absolutely perfect system - free of any inefficiencies - it would take you no more energy to split water than the amount of energy you would gain from the recombination of hydrogen with oxygen to form water. That energy level is 142 J/g.
So, the amount of energy gained from the recombination of hydrogen with oxygen to re-form water (in effect, "burning" the hydrogen) is 142 Joules per gram of hydrogen. In an absolutely perfect system it would take 142 Joules of electricity to form a gram of hydrogen from water. Since inefficiencies exist in any energy-conversion system, your mileage will vary.
Actually, it's going to take about 50% more energy to split the water than you're going to get back out of the system - depending upon your system. There are systems in laboratories and other experimental systems which are more efficient than the "50% more" mark quoted, but you won't find any of them on the shelves at Wal*Mart.
For a homebrew system, however, start your calculations at about 200 Joules per gram of hydrogen extracted from the water. Remember that depending upon the inefficiencies inherent in whatever system you build that it may take more or less energy than 200 J/g to extract the hydrogen you seek.
It doesn't take much and more voltage can actually interfere with the splitting process.
About 1.23 Volts (at the electrodes).
2 H2O(l) → 2 H2(g) + O2(g); E0 = +1.229 V
But you need an eletrolyte in the water (many salts will do just fine so sea water is easy to split into hydrogen and oxygen)
It's not the voltage that kills - it's the amperes. A few millivolts can kill if the amps are high enough.
That depends on the amount of water, the temperature, the shape of the container that holds the water.
Enough so that the total voltage exceeds the voltage rating of the lightbulb.
That depends on how large the puddle is - how wide and how deep and how much water is in the puddle.
It all depends on how much water there is. The more water there is, the more kilocalories it takes.
Electricity? Plus water? Deadly. Is this really the question you wanted to ask?
Water is split in the photosystems in the chlorophyll of the chloroplasts.
3,000 volts
Imagine a water pipe with water flowing inside,the interior diameter determines maximum amount of water that can flowthe external isolation determines maximum amount of water before it tears apartwhen you have higher water potential you want more stronger isolation for the pipe to not tear apart,if you have higher amount of water, you want wider pipe interior to allow more water to flowthe same principle applies for electricity, Voltage = water potential, water = currentso, rated voltage of cable is how much its insulation can take before the voltage can "breakout" to external conductors and most likely cause a short circuit by conduction between the two terminals.
Water (H2O) is a molecule with 2 hydrogen atoms and 1 oxygen atom attached by chemical bonds. If we put two electrodes in pure water and apply a DC voltage, the voltage will supply the energy necessary to split water molecules. We call this electrolysis. At one of the electrodes (the positive one), oxygen atoms will appear, and at the other electrode (the negative one), hydrogen atoms will appear.
It's not the voltage that kills - it's the amperes. A few millivolts can kill if the amps are high enough.
a teaspoon of water
It really depends how much water you drink.
The body can't take so much high voltage causing it to just stop.
it is reccomended you take in 2 liters of water a day
How big each pore id and how much water it can take in. How big each pore id and how much water it can take in. How big each pore id and how much water it can take in.Having a lot of tiny holes and spaces throughout its structure.
The human body can be electrocuted by as little as 10 milliamps (mA) of current.Remember that voltage is a measure of the pressure driving the current, whileamperage measures how much current flows through something (in this case,you). Also keep in mind that 10 mA is 1/100 of an ampere; it doesn't take thatmuch to disrupt a heartbeat. Too much voltage is whatever it takes, betweenthe two points where the circuit contacts your body, to drive 0.01 ampere ofcurrent through your heart.Another AnswerToo much voltage is whatever voltage causes its insulation to break down.