It’s not fire. That’s a chemical reaction. The sun is powered by fusion which is a nuclear reaction. Yes, the sun contains enough hydrogen to sustain itself. Consider the volume of the sun and the mass of plasma contained therein.
The mass of the sun is about 2.192x10^27 tons. At the rate of 6.0x10^8 (600 million) tons per second, and assuming all of the sun’s mass is hydrogen to start with, it would theoretically take about 1.16x10^11 (116 billion) years to convert it all into helium. More realistically, however, only a small fraction of the sun’s total mass is under conditions that allow fusion to occur.
IIRC, only the gas near the core of the star reaches the proper temperatures and pressures to fuse. As a star ages, the gas at its core is converted from hydrogen into helium, then from helium into heavier elements like carbon, oxygen, silicon, (not sure of the specific order) until it either burns out or it develops an iron core and collapses. This collapse can either explode in a supernova or fall into a singularity, forming a black hole.
“It’s not fire. That’s a chemical reaction. The sun is powered by fusion which is a nuclear reaction. Yes, the sun contains enough hydrogen to sustain itself. Consider the volume of the sun and the mass of plasma contained therein.”
I see. So, the sun is basically a huge ball of hydrogen? A giant ball, with enough hydrogen to last billions of years?
Wouldn’t the heat from the fusion, light the hydrogen on fire?
Don’t you people watch Doctor Who? Jeez I am glad that I am a time traveler and have seen the implosion of the sun. It happens on a Friday btw. The sun decided to take a early weekend.
“Wouldn’t the heat from the fusion, light the hydrogen on fire?”
To my knowledge it essentially is a giant ball of fire, hence the heat. Then again, I’m not keen on the natural sciences. So perhaps I have given the wrong image.