What is the stellar and solar source of energy?

The primary source of solar energy, and that of similar size stars, is the fusion of hydrogen to form helium (the proton–proton chain reaction), which occurs at a solar-core temperature of 14 million kelvin. … In heavier stars, the CNO cycle and other processes are more important.

What is the source of stellar energy?

The main source of energy in hotter stars is the carbon cycle (also called the CNO cycle for carbon, nitrogen, and oxygen), in which hydrogen is transformed into helium, with carbon serving as a catalyst.

What is stellar energy answer?

Answer. 118.2k+ views. Hint:Stellar energy refers to the energy radiated by a star. This energy is obtained from an internal source of the star. The internal source corresponds to the energy produced when two lighter nuclei combine to form a heavier nucleus.

What is the source of energy in sun and stars?

The source of energy in the Sun and stars is the nucleus fusion of light nuclei such as hydrogen present in them in their inner part. This takes place at a very high temperature and high pressure due to which helium nucleus is formed with the release of high amount of energy.

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What is the energy source for all the stars?

Nuclear Fusion

Many stars produce much more energy than the Sun. The energy source for all stars is nuclear fusion. Stars are made mostly of hydrogen and helium, which are packed so densely in a star that in the star’s center the pressure is great enough to initiate nuclear fusion reactions.

Which reaction is responsible for solar and stellar energy?

The primary source of solar energy, and that of similar size stars, is the fusion of hydrogen to form helium (the proton–proton chain reaction), which occurs at a solar-core temperature of 14 million kelvin.

What is stellar theory?

Stars are the basic building blocks of the visible Universe and produce almost all chemical elements heavier than helium. Understanding how stars transformed the pristine Universe into the one we live in today is at the heart of research in astrophysics.

How stellar energy is produced?

Nuclear fusion powers a star for most of its existence. Initially the energy is generated by the fusion of hydrogen atoms at the core of the main-sequence star. Later, as the preponderance of atoms at the core becomes helium, stars like the Sun begin to fuse hydrogen along a spherical shell surrounding the core.

What is the sun powered by?

Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun’s core and fuse to create a helium atom. This process, known as a PP (proton-proton) chain reaction, emits an enormous amount of energy.

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How is the energy of star produced answer?

Nuclear fusion is the process stars produce energy. … Nuclear Fusion is the typical energy creation process in a star such as our Sun.

Does a solar cell have energy?

solar cell, also called photovoltaic cell, any device that directly converts the energy of light into electrical energy through the photovoltaic effect.

Is the sun made of energy?

The sun is a big ball of gas and plasma. Most of the gas — 92% — 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

Is the stellar process that produces energy in the stars?

Stars produce energy from nuclear reactions, primarily the fusion of hydrogen to form helium. These and other processes in stars have lead to the formation of all the other elements. On the basis of scientific evidence, the universe is estimated to be over ten billion years old.

What type of star produces the most energy?

The greater the mass of a main sequence star, the higher its core temperature and the greater the rate of its hydrogen fusion. Higher-mass stars therefore produce more energy and are thus more luminous than lower mass ones.

What is the source of energy in red giant?

After helium burning begins (either explosively with a flash, or gradually for heavier stars), the star has two sources of energy, hydrogen fusion in a shell around the core and helium fusion in the core. Helium burns into carbon, and carbon combines with helium to make oxygen.

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