The exact temperature depends on what fraction of the protons you require to be in hydrogen atoms. But
8000m/s
is a reasonably good estimate.
Does hydrogen move fast?
The hydrogen molecules move faster than oxygen molecules at the same temperature
, since the oxygen molecule is 16 times heavier than the hydrogen molecule.
How many miles per gallon does hydrogen get?
Average Expected Energy Use (mpge)
FCEBs have an average fuel economy of approximately
7.9 miles per kilogram of hydrogen
, which equates to approximately 7 miles per diesel gallon equivalent (DGE). The average fuel efficiency of conventional diesel transit buses is approximately 3.87 miles per gallon.
How far can a hydrogen car travel?
According to the EPA, the Mirai goes 402 miles per tank in XLE form, or
357 miles in Limited form
, with the LE achieving better efficiency than the Honda Clarity. Ordinary drivers won't see anything close to Toyota's results—equivalent to more than double the EPA-rated range—in normal conditions.
What is the speed of electric current?
In the case of an electrical cord connecting a table lamp or some other household item to a power source, the copper wire inside the cord acts as the conductor. This energy travels as electromagnetic waves at about the speed of light, which is
670,616,629 miles per hour
,1 or 300 million meters per second.
What happens when hydrogen collides?
Under more normal-pressure conditions (or even low-pressure conditions),
two colliding hydrogen atoms will form a covalent bond, to make hydrogen gas, H
2
. Under higher-energy conditions, the H
2
gas will immediately break up again into individual Hydrogen atoms.
How much faster will h2 diffuse compared to He?
Graham's law of diffusion states that the rate of diffusion is INVERSELY proportional to the square root of the molecular masses of each gas…. And thus dihydrogen will diffuse approx.
1.4 times
faster than the more massive helium….
What does Graham's law state?
Graham's Law states that
the effusion rate of a gas is inversely proportional to the square root of the mass of its particles
.
What is the fastest moving gas molecule?
On average,
helium atoms
move much faster than xenon atoms, which are over 30 times heavier. As a side note – gas molecules tend to move very fast. At 0 °C the average H
2
molecule is moving at about 2000 m/s, that is more than a mile per second (and the average O
2
molecule is moving at approximately 500 m/s).
Why is the Mirai so cheap?
The short answer is: The Mirai is cheap because of the massive incentives offered when purchasing a new model, the most popular three-year lease with free fuel, a small number of charging stations, and a dose of uncertainty in the technology from the general consumer base.
Will hydrogen cars overtake electric?
That's true to an extent, but
hydrogen-powered cars are not really expected to replace EVs
. Instead, hydrogen is intended to complement pure electric power, and there's a good reason for this: it is the cleanest fuel possible.
Is hydrogen the future?
Clean hydrogen is touted as the future fuel of the EU
, promising to deliver an abundance of carbon-neutral energy by 2030. It will power long haul freight vehicles, airplanes, steel production and domestic heating, proponents say.
Is Toyota making a hydrogen car?
Although Toyota and other carmakers are putting resources into building hydrogen fuel cell vehicles (FCV),
none have shown the appetite Toyota has for hydrogen engine technology
.
Is hydrogen better than electric?
Depending on the model, they can boast a well-to-wheel efficiency of around 70 to 80 per cent. By comparison,
a hydrogen fuel cell-powered electric vehicle (FCEV) is positively parsimonious, with an overall efficiency of somewhere around 30 to 35 per cent
. The difference is in how the two process electricity.
How much is a gallon of hydrogen fuel?
Hydrogen fuel is much more efficient than gasoline, but it's also four times more expensive, roughly equivalent to about
$16 a gallon
.
Is there anything faster than the speed of light?
A reference frame with zero width and with no progression in time is really a reference frame that does not exist. Therefore, this tells us that
nothing can ever go faster than the speed of light
, for the simple reason that space and time do not actually exist beyond this point.
Can a proton travel at the speed of light?
But applying Feynman's parton model to lattice QCD requires knowing the properties of a proton with infinite momentum, which means that
the proton particles must all be traveling at the speed of light
.
Is darkness faster than the speed of light?
Most of us already know that darkness is the absence of light, and that light travels at the fastest speed possible for a physical object. So, what does this mean? In short, it means that, the moment that light leaves, darkness returns. In this respect,
darkness has the same speed as light
.
Is the sun a natural fusion reactor?
Fusion already happens naturally in stars — including the sun
— when intense pressure and heat fuse hydrogen atoms together, generating helium and energy. This process is what powers the sun and makes it so hot and bright.
Why can this happen in stars and not elsewhere?
Stars are made mostly of hydrogen and helium. Both are very light gases, but a star contains so much hydrogen and helium that its total mass is enormous.
The pressure at the center of a star is great enough to heat the gases
. This causes nuclear fusion reactions.
What happens when 2 hydrogen atoms fuse?
Fusion reactions occur when two nuclei come together to form one atom. The reaction that happens in the sun fuses two Hydrogen atoms together
to produce Helium
. It looks like this in a very simplified way: H + H → He + ENERGY. This energy can be calculated by the famous Einstein equation, E = mc2.
How fast is the rate of effusion of H2 compared to that O2?
So, rate of diffusion of hydrogen gas is
four times faster
than oxygen gas.
Which gas Effuses faster he or H2?
Correct answer:
The gas with the lowest molecular weight will effuse the fastest
. The lightest, and therefore fastest, gas is helium.
Which one will diffuse fastest?
H2 is hydrogen gas
and it will diffuse the fastest as all other options contain metals either in solid state(Fe and Na) or liquid state(Hg). This is due to the fact that gases diffuse easily and faster than liquids and solids.
How much faster does hydrogen escape through a porous container?
Hydrogen gas effuses through a porous container
8.97-times
faster than an unknown gas. Estimate the molar mass of the unknown gas.
What is the meaning of Boyle's Law?
This empirical relation, formulated by the physicist Robert Boyle in 1662, states that
the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature
; i.e., in equation form, pv = k, a constant.
What is Amontons law?
Toward the end of the 1600s, the French physicist Guillaume Amontons built a thermometer based on the fact that the pressure of a gas is directly proportional to its temperature.
The relationship between the pressure and the temperature of a gas
is therefore known as Amontons' law.
