0
With coal or wood, the ash remaining after burning is lighter than the coal you start with. With natural gas, it turns to CO2 plus water vapor, so there is no fuel left. Similarly with oil, at least with light oil like kerosene or gasoline, it is all vaporised.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoLighter, because there is less fuel and all the moisture has gone from the fuel.
Add your answer:
Earn +20 pts
When released why does a balloon moves like a rocket?
A balloon does not move like a rocket. A helium filled balloon will float upward because the density of helium is less than that of air, so it is effectively "lighter". A rocket is propelled in any direction using a booster engine that burns fuel.
What happens to the weight of a rocket when it takes off?
The mass of the rocket decreases as fuel burns.
What is released when fuel burns in oxygen?
Water is given off when fuels are burnt in oxygen
Possible options for spent nuclear fuel rods include?
burying them in deep caverns.removing lighter nuclei and reusing them re-mixing them and putting them back in the mines
Does jet fuel burn hot enough to melt steel?
Construction grade steel burns at 2795 degrees Fahrenheit. Jet fuel does not burn this hot. Its maximum temperature is 1472 degrees Fahrenheit.
What Star burns its fuel the fastest?
Heavier stars will usually burn faster than lighter stars.
Why does a heavier plane fly further than a lighter plane?
It usually has greater capacity for fuel storage.
Is diesel fuel heavier than water?
Yes, diesel will float on top of water. This is because the petrol will weigh less than the water will weigh, therefore it will float on top of the heavier substance.
After lift off the rocket will?
become ebecome easier to accelerate as it burns up fuel. asier to accelerate as it burns up fuel.
Why do engineers need to keep the mass of a spacecraft as low as possible?
The heavier it is the stronger the engine has to be. And the stronger the engine the more fuel will it burn. And the more fuel it burns the more fuel has to be carried in the rocket. And the more fuel the rocket has to lift the stronger the engine has to be.
Why do engineers need to keep the masses of spacecrafts as low as possible?
The heavier it is the stronger the engine has to be. And the stronger the engine the more fuel will it burn. And the more fuel it burns the more fuel has to be carried in the rocket. And the more fuel the rocket has to lift the stronger the engine has to be.
What is heavier diesel fuel or water?
Water is heavier than diesel fuel
The source of fuel for fission reactors is?
"Binding energy." Absorption of neutrons by heavy elements, and fission of those heavy elements into lighter "fragments". The "lighter fragements" have a greater net binding energy than the heavier elements did.
What is the element mined to be the fuel in nuclear reactors?
We mine uranium for use as a nuclear fuel. The uranium is separated from ore, and may undergo enrichment to separate out the lighter U-235 nuclide from the heavier U-238 one.
What Fuel does a Star burn to create its own energy?
A star will use fusion to combine lighter atoms into heavier atoms. A main-sequence star (that's the majority of stars) will convert hydrogen-1 into helium-4, so in this case, hydrogen-1 is the fuel. Once it starts running out of hydrogen-1, it will start fusing the helium into heavier elements - in which case the main fuel will be the helium-4. Later in the life cycle of a star, the fuel can be even heavier elements.
Do you burn wood on the fire or in the fire?
Neither... The wood is the fuel, but first it needs to become a gas. The gas is what burns.
Why is a Boeing 747 always heavier at take-off than at landing?
The 747 is lighter on landing because of the fuel it burned off during flight. This is true for all planes.
