The CNO-IV cycle is a related cycle to the CNO-I cycle but is only seen on massive stars. It starts with an oxygen–18 nuclide and conducts the following steps: a hydrogen fusion with a gamma ray release, a hydrogen fusion with a release of an alpha particle, a hydrogen fusion with a gamma ray release, a positron emission, a hydrogen fusion with a gamma ray release, and a positron emission. Determine the nuclear reactions and draw a cycle that represents the CNO-IV cycle.
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
The CNO-IV cycle is a related cycle to the CNO-I cycle but is only seen on massive stars.
It starts with an oxygen–18 nuclide and
hydrogen fusion with a gamma ray release, a positron emission, a hydrogen fusion with a
gamma ray release, and a positron emission. Determine the nuclear reactions and draw
a cycle that represents the CNO-IV cycle.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 1 images
