Yes. The sun is often cited as an example of energy from fusion of hydrogen atoms into helium. You might consider then that this is "simple" physical chemical reaction between these atoms.
However hydrogen does not combine to make helium under normal conditions.
What it takes is that the hydrogen atoms are squeezed together by the massive gravity of the sun until the nucleus of each atoms essentially touch and unite to form hydrogen and release energy in the process.
In short the Sun is able to convert energy from gravity into light.
The sun crushes hydrogen into helium with its immense gravity. This makes light and heat. This is a nuclear reaction.
The sun crushes hydrogen into helium with its immense gravity. This makes light and heat. This is a nuclear reaction.
the suns heat light and energy comes from the core of the sun and travels trough space
the suns heat makes light the sun heat is orange which gives light
Nuclear fusion.
The sun gravity is stronger
The name for the sun's sphere of light is called the photosphere. It is the visible surface of the sun that emits light and heat.
Waves of heat and light, called radiation, travel to earth.
Photosynthesis primarily relies on the sun's light energy, which is captured by chlorophyll in plant cells to drive the photosynthetic process. While some heat energy may be generated as a byproduct of photosynthesis, it is not the main source of energy for the process.
Gas and Light.
The energy produced by the fusion of hydrogen atoms into helium in the sun's core is what generates the heat and light emitted by the sun. This process releases energy in the form of electromagnetic radiation, which includes visible light and heat.
The Sun's gravity, at its surface, is about 28 times Earth's surface gravity.