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The energy density of autogas (liquefied petroleum gas or LPG) is typically higher than that of petrol (gasoline) due to its composition, which consists primarily of propane and butane. These hydrocarbons have a higher calorific value per unit volume compared to the components of petrol. Additionally, autogas is stored in a pressurized liquid state, allowing more fuel to be stored in a given volume, enhancing its energy density. This makes autogas a more energy-dense option for certain applications, particularly in vehicles designed for its use.
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How does density effect kinetic energy?
The more dense an object is the more kinetic engery it has
Rubber is heated what happens to it's density?
When rubber is heated, it typically expands and its density decreases. This is because the increased thermal energy causes the rubber molecules to vibrate more, creating more space between them and leading to a decrease in density.
What is the energy density of lipids?
The energy density of lipids is approximately 9 calories per gram, making them the most energy-dense macronutrient compared to carbohydrates and proteins, which provide about 4 calories per gram. This high energy density stems from the long hydrocarbon chains in fatty acids, which store more energy in their chemical bonds. As a result, lipids play a crucial role in energy storage and metabolism in living organisms.
Does the viscosity of petrol change?
Yes, the viscosity of petrol can change with temperature. As temperature increases, the viscosity of petrol decreases, making it flow more easily. Conversely, at lower temperatures, the viscosity of petrol increases, making it flow more slowly.
What kind of biomolecule can store more energy than the others?
Lipids, specifically triglycerides, can store more energy per gram than carbohydrates or proteins. This is because lipids have a higher energy density due to their higher number of carbon-hydrogen bonds.
What produces more energy a liter petrol or disel?
Diesel fuel produces more energy per liter compared to petrol (gasoline). This is primarily due to its higher energy density and the fact that diesel engines operate at a higher compression ratio, making them more efficient. On average, diesel contains about 10-15% more energy than petrol, which contributes to better fuel economy in diesel engines.
Why is petrol more efficient than ethanol?
Petrol is more efficient as a fuel than ethanol, because the energy generated by burning a fuel is primarily released by formation of bonds between oxygen and carbon or hydrogen. One such bond already exists in an ethanol molecule, whereas in petrol few or no such bonds exist.
Why is a hydrogen engine more powerful than a petrol engine?
As hydrogen releases more energy than petrol, H engine is more powerful than petrol .
Why petrol have more calorific value?
Petrol has a higher calorific value primarily due to its hydrocarbon composition, which consists of long chains of carbon and hydrogen atoms that release a significant amount of energy when combusted. The energy density of petrol is also enhanced by its ability to vaporize easily, allowing for more efficient combustion in engines. Additionally, the structure of petrol allows for a greater number of carbon-hydrogen bonds, which release energy when broken during the combustion process, contributing to its higher calorific value compared to other fuels.
What has more fuel energy petrol or diesel?
Gasoline has more energy per lb than Diesel.
Which is more dense petrol or kerosene?
Petrol is more dense than kerosene. Density is a measure of mass per unit volume, and petrol is more dense because it has a higher mass per unit volume compared to kerosene.
What is a supreme petrol?
Supreme petrol is one way to say that the gasoline possesses more percentage of hydrocarbon. More the percentage of octane for a given petrol, it will burn more hence giving more energy and less unburnt hydrocarbons. Supreme petrol's are little expensive than regular petrol.
Why isn't petrol burned in power stations?
Petrol is not typically burned in power stations because it is more commonly used as a fuel for vehicles due to its high energy density. Power stations tend to use fuels like coal, natural gas, or renewable sources such as solar or wind because they are more suitable for generating electricity on a larger scale. These fuels are often more cost-effective and efficient for power generation than petrol.
In terms of friction why does a car use more petrol when it has a load on its roof?
It uses more petrol because of air resistance. Friction pulling the load on the roof which causes the car to use more petrol because of the weight it needs more energy to move around.
Why has bitumen got a higher boiling point than petrol?
Bitumen has a higher boiling point than petrol because it is made up of larger, heavier hydrocarbon molecules with more carbon atoms. These larger molecules require more energy to break the intermolecular forces holding them together, resulting in a higher boiling point compared to the smaller hydrocarbons found in petrol.
Why is coal better than petrol on open fire?
because coal has more energy intake ?..,
Is there an energy advantage if diesel contains 17 percent more chemical potential energy than petrol?
Yes, the energy output of an engine is governed by the chemical potential energy of the fuels. Assuming that the extra potential energy could be turned into useful work, there would be an energy advantage of diesel over petrol.
