what is the reson of sun being so hot ?

Answer 1

thats due to the fission and fusion reactions that occurs in the sun .... the fission process occurs when one helium atom breaks down into 2 hydrogen atoms and he fusion is the opposite exactly .... these processes produces an enormous amount of energy that is converted into heat energy and so the sun is hot.

Answer 2

Well, to understand why the sun is hot you have to understand the relationship between mass and gravity. Basically, the more mass something has the more gravity it has.

The sun is so very massive that the pressure in its core is so great the conditions are perfect for nuclear fusion. Fusion is the process by which two hydrogen atoms are forced to bond together creating a single helium atom. The funny thing is, the helium atom has less mass than the two original hydrogen atoms. Well, that mass had to go somewhere as it couldn't just dissappear. What has happened is it was transformed into energy. This is explained in the famous equation E=MC^2. The energy created is equal to the mass lost multipled by C (the speed of light or 299,792,458) squared.

So, when you multiply this reaction by billions you can see that a great amount of energy is produced and the most basic by product of energy production is heat....so that is why the sun is hot

Answer 3

The answer is nuclear fusion. The sun fuses hydrogen atoms into helium atoms. The process gives off enormous amounts of energy (like those seen in nuclear explosions).
The sun does this on a very large scale and therefore it is very hot.

Answer 4

Nuclear fusion causes 33% or so of the matter to be converted into pure energy. That's a lot of matter, and you really don't understand what "hot" really is, until you've examined nuclear processes. They cannot be compared with on the same scale as the chemical combustion that you are familiar with on Earth.

The temperature of a lightening bolt is the closest natural process that occurs on Earth. In both cases, it's not burning gas, but plasma -- matter heated into a fourth state (beyond solid-liquid-gas).

Nuclear "fire" is seldom fully understood by most people. If they did, they would vehemently oppose the manufacture and use of nuclear "weapons".

Answer 5

In the sun's core hydrogen is converted to helium by nuclear fusion, releasing energy into process. The energy travels form the core , through the radiative and the convective zones, to the photosphere (visible surface), where it leaves the sun in the form of Heat and Light.

Answer 6

The sun gets its heat from fusion, the process of turning one gas into another. In this case the gases are Hydrogen and Helium, I'm just not sure which one turns to what.

Answer 7

erm its fusion not fission.. hydrogen fuse to form helium. when nucleons come together, they become lighter den their consituents, which means though no of nucleons speaking there is no change, they actually weigh lighter when they fuse, and this mass is converted into heat energy in the sun, given by E=mc where m is the lost mass after they combine. so u can c this is alot of energy to keep the sun hot=)

Answer 8

Fusion.

Answer 9

Awww aren't you just cute? It is hot because it is hot gasses. Wouldn't it just be a different place to live without it's heat and rays?

Answer 10

millions of fusion explosions.