How is energy transferred through the convective zone?

How is energy transferred through the convective zone?

In this region, energy is transported by radiation (you have radiation around the core of a nuclear central, around a nuclear explosion,…). Energy is transported by convection in this region. The surface of the convection zone is where light (photons) is created. This top layer is called the photosphere.

How does the transfer of energy in the radiative zone differ from the transfer of energy in the convective zone?

In the convective zone, the energy is transferred much faster than it is in the radiative zone. This is because it is transferred through the process of convection. It can do this because the convective zone is cooler than the radiative zone and therefore less dense. As the gas rises, it cools and begins to sink again.

How long does it take for the energy to be transported through the radiation zone?

Particles of light called photons can only travel a few millimeters before they hit another particle in the Sun, are absorbed and then released again. It can take a photon as long as 50 million years to travel all the way through the radiative zone.

How does energy move in the Sun’s convective zone?

Convection Zone of the Sun In the convection zone, energy is transported by the movement of the plasma or the hydrogen and the helium ions. Plasma churns vigorously, transporting heat energy to the surface of the Sun through convection.

How long does it take for energy to pass through the convection zone?

The hot material follows a direct path through the convective zone and the energy is transferred much faster than it is by radiation. It takes only a little more than a week for the hot material to carry its energy to the top of the convection zone.

What happens in the radiative zone?

In the radiative zone, energy generated by nuclear fusion in the core moves outward as electromagnetic radiation. In other words, the energy is conveyed by photons. When the energy reaches the top of the radiative zone, it begins to move in a different fashion in the convective zone.

What happens in the convective zone?

A region of turbulent plasma between a star’s core and its visible photosphere at the surface, through which energy is transferred by convection. In the convection zone, hot plasma rises, cools as it nears the surface, and falls to be heated and rise again.

What occurs in the Sun’s radiation zone?

The Sun’s radiative zone is the section of the solar interior between the innermost core and the outer convective zone. In the radiative zone, energy generated by nuclear fusion in the core moves outward as electromagnetic radiation. In other words, the energy is conveyed by photons.

How long do photons stay in the radiation zone?

The photons of energy have finally, after 100,000 years, come to the end of their journey inside the Sun. They have now reached a zone which is transparent to light. The photons escape into space, and travel at the classic speed of light — around 300,000 kilometres per second.

What goes on in the radiative zone?

In the radiative zone, energy generated by nuclear fusion in the core moves outward as electromagnetic radiation. In other words, the energy is conveyed by photons. In the convective zone, heat and energy are carried outward along with matter in swirling flows called convection cells.

What happens when there is a sudden drop of temperature in the sun’s core?

So, as the fusing helium heats the core, which cannot expand to cool down, the increased temperature causes the helium fusion to suddenly proceed millions of times faster, which very rapidly heats the core even more, which in turn causes the helium to fuse way, way faster . . .

How long is the radiative zone?

Instead, they bounce around for 40 million years before leaving. The radiative zone is a thick layer of highly ionized, very dense gases which are under constant bombardment by the gamma rays from the core. It is about 75% hydrogen and 24% helium….Structure.

Feature	% of radius
Corona	At least 500%

How is energy transferred in the radiation zone?

However, for a star like the Sun, the most efficient means of transferring energy near the core is by radiation. Consequently, the region surrounding the core of the Sun is known as the radiation zone. Throughout this region of the solar interior, energy, in the form of radiation, is transferred by its interaction with the surrounding atoms.

Where does the transfer of heat energy take place?

Convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid. Air in the atmosphere acts as a fluid. The sun’s radiation strikes the ground, thus warming the rocks.

Which is more efficient the transfer of energy by radiation or convection?

Consequently the transfer of energy by radiation slows down significantly. We now need another method to transport the Sun’s energy to the surface. The most efficient means of energy transfer is now convection and we find ourselves in the region of the Sun’s interior know as the convection zone.

How long does it take for the sun to get out of the radiation zone?

Instead, the Sun’s energy is passed randomly from atom to atom. Sometimes it moves outward, sometimes inward and just a often it moves side to side. It takes over 170 thousand years for the energy released in the core of the Sun to get out of the radiation zone! Convection Zone.