No star will EVER convert ALL of the hydrogen to helium via nuclear fusion (the process that powers the star) because when the star is less than about 50% hydrogen, the helium gets in the way of the fusion reaction and the star begins to die out. The star will begin to shrink as the star's own gravity now is more powerful than the nuclear reaction, and the star will get more dense and will heat up.
If the internal temperature and pressure gets high enough, the star will begin fusing helium into even heavier elements, becoming a red giant.
The speed of this reaction depends on the original mass of the star.
It just stays there waiting to be used-the sun has enough to last many billions of years and luckily for us the rate of burning has stayed fairly constant so far, but eventually it will run out of hydrogen and die.
Something like five billion years more.Something like five billion years more.Something like five billion years more.Something like five billion years more.
A 1.5-M star will fuse hydrogen in its core approximately 7 times longer than a 15-M star because less massive stars burn hydrogen at a slower rate due to their lower core temperatures and pressures. This means they have longer main-sequence lifetimes compared to more massive stars.
The sun has about 5 billion years worth of hydrogen left before it exhausts its supply and evolves into a red giant star.
Saturn is made up of four main layers: the inner core, the rocky mantle, the liquid metallic hydrogen layer, and the outer gaseous layer. These layers are primarily composed of hydrogen and helium, with smaller amounts of other elements.
millions of years
1 billion years
It just stays there waiting to be used-the sun has enough to last many billions of years and luckily for us the rate of burning has stayed fairly constant so far, but eventually it will run out of hydrogen and die.
The temperature at the Sun's core is about 15 million degrees Kelvin. This extreme heat is generated by nuclear fusion reactions that convert hydrogen into helium.
Hydrogen has one core electron. Core electrons are those in the inner energy levels of an atom and are not involved in chemical bonding.
Something like five billion years more.Something like five billion years more.Something like five billion years more.Something like five billion years more.
To calculate the number of atoms in 3.4 grams of hydrogen peroxide, you first convert the grams to moles using the molar mass of hydrogen peroxide. Then, you use Avogadro's number to convert moles to atoms. There are approximately 6.022 x 10^23 atoms in 1 mole of a substance.
Divide the number of minutes by 60 to convert to hours, then divide the result by 24 to convert to days, and finally divide that by 365.25 to convert to years.
It will eventually. In about 5 billion years the sun will deplete the hydrogen at its core. Afterward it will continue to alternate between fusing helium in the core and fusing hydrogen in a shell around the core before it finally dies.
Too many unfortunately
yes but the idea was lost many years ago
To find the volume of hydrogen gas produced, we first need to convert the mass of baking soda (645g) to moles. Then, using the balanced chemical equation for the reaction, we can determine the moles of hydrogen gas produced. Finally, using the ideal gas law at STP, we can convert the moles of hydrogen gas to liters.