Table of Contents
- 1 Does combustion take place in the sun?
- 2 What is the fuel source for the sun?
- 3 Why is the sun on fire?
- 4 How much fuel does the Sun burn in 1 second?
- 5 How much fuel does the sun burn?
- 6 Why hydrogen is not used as a fuel?
- 7 How is combustion carried out in the Sun?
- 8 What does it mean when the Sun is on fire?
Does combustion take place in the sun?
Sun also produces heat and light, but there is no oxygen in space. So, sun cannot undergo combustion to produce heat and light.
What is the fuel source for the sun?
The sun is a big ball of gas and plasma. Most of the gas — 91 percent — is hydrogen. It is converted into energy in the sun’s core….Abundance of elements.
| Element | Abundance (pct. of total number of atoms) | Abundance (pct. of total mass) |
|---|---|---|
| Hydrogen | 91.2 | 71.0 |
| Helium | 8.7 | 27.1 |
| Oxygen | 0.078 | 0.97 |
| Carbon | 0.043 | 0.40 |
How does the sun burn without oxygen?
Complete step by step answer: But the burning of the sun is not a chemical combustion, it is a nuclear fusion. The sun is considered as the giant hydrogen bomb. In the nuclear fusion, the nuclei of the atoms fused with each other to form a larger nuclei. The nuclear fusion does not involve oxygen.
What burn hotter hydrogen or natural gas?
Hydrogen is likely to burn hotter than natural gas and this has implications for efficiency and Nitrogen Oxides (NOx) emissions. NOx is known to be a major air pollutant and, particularly for boilers, is highly regulated through the Energy Products Directive (ErP).
Why is the sun on fire?
Answer: The Sun does not “burn”, like we think of logs in a fire or paper burning. The Sun glows because it is a very big ball of gas, and a process called nuclear fusion is taking place in its core. People, including scientists, sometimes say that the Sun “burns hydrogen” to make it glow.
How much fuel does the Sun burn in 1 second?
In this way the Sun consumes about 5 billion kilograms (5 million tons) of its nuclear hydrogen fuel every second.
How long will it take for the Sun to burn out all of its hydrogen fuel?
about 5 billion years
But in about 5 billion years, the sun will run out of hydrogen. Our star is currently in the most stable phase of its life cycle and has been since the birth of our solar system, about 4.5 billion years ago. Once all the hydrogen gets used up, the sun will grow out of this stable phase.
What makes the sun burn constantly?
The efficiency of thermonuclear fusion is a major reason the sun has kept radiating heat for so long—the energy released by turning just one kilogram of hydrogen into helium is the same as burning 20,000 metric tons of coal.
How much fuel does the sun burn?
In this way the Sun consumes about 5 billion kilograms (5 million tons) of its nuclear hydrogen fuel every second. Yet the Sun is so large that it has been burning hydrogen at this rate ever since it formed some 5 billion years ago, and it will continue to burn steadily for at least another 4 billion years.
Why hydrogen is not used as a fuel?
Hydrogen has the highest calorific value so it can be considered as the best fuel but it is highly inflammable so it is diificult to store, transport and handle so it is used as a fuel only where it is absolutely necessary.
Can hydrogen spontaneously combust?
Hydrogen Combustion The auto-ignition temperature of a substance is the lowest temperature at which it will spontaneously ignite without the presence of a flame or spark. Hydrogen’s flammability range (between 4% and 75% in air) is very wide compared to other fuels, as shown in Figure 3.
Is the entire sun on fire?
How is combustion carried out in the Sun?
Combustion: A chemical reaction that occurs when oxygen combines with other substances to release heat. The sun is carrying out a much different process called nuclear fusion. Each second the sun converts 700,000,000 tons of the element hydrogen into 695,000,000 tons of the element helium.
What does it mean when the Sun is on fire?
This is a chemical reaction that we call combustion. The sun is carrying out a much different process called nuclear fusion. Each second the sun converts 700,000,000 tons of the element hydrogen into 695,000,000 tons of the element helium.
What do you need to know about the combustion process?
Three things are required in proper combination before ignition and combustion can take place— Heat, Oxygen and Fuel. There must be Fuel to burn. There must be Air to supply oxygen. There must be Heat (ignition temperature) to start and continue the combustion process. The Sun is the major source of heat.
What kind of fuel does the Sun have?
We know the sun has a bunch of fuel in the form of hydrogen and helium. We also know that nuclear fusion consumes this fuel and gives off tremendous amounts of energy. What’s specifically happening? The Sun is so massive that the lightest elements in the Universe cannot escape it’s gravitational pull.