Convection
convection
Density determines how far apart molecules of a material are from one another, i.e. Density is the mass per unit of space. Due to this, density is related to the rate of heat transfer or thermal energy transfer. Thermal energy being transferred relies on the difference in the internal energy of molecules, mostly kinetic energy, as when heat is transferred, these molecules exchange energy by hitting into each other. By doing so, eventually thermal equilibrium is established. Summary - Density is related to the rate of heat transfer between two systems.
The thermal energy of any substance is the product of its specific heat and the temperature difference between it and the surroundings. So if you increase the temperature you directly increase the thermal energy, in proportion to the difference between its temperature and ambient temperature.
There are a number of principles associated with characterizing the phenomenon of thermal energy. They are generally though of being, and considered/evaluated under the heading of, heat transfer or thermodynamics. The most general answer is this: heat goes from where it's hot to where it's not. Obvious. A link is provided to the Wikipedia article on heat and on thermodynamics. Use them. And no, you won't get tricked. Promise.
It depends what you are comparing it to, if for instance you compare it to a vaccuum then it is an infinitely better conductor. Compared to copper however it is very poor, because obviously air is a mixture of various gasses and gasses are mostly empty space; because transferal of heat is through one particle passing on energy to another through vibrations it stands to reason that the less particles you have in a set volume the less efficiently it will transfer heat.
Mode of energy transfer in fluids is convection.
Convection
convection
convection
Not likely. Atoms are mostly empty space.
In a conventional oven it's mostly conduction,with a bit of air convection thrown in.There are "ovens" (as seen on TV ... mostly at 3AM) that use hot air and forced convection as the main heat transfer technique.
Thermal Energy
Mostly the kinetic energy of particles due to heating is called thermal energy Temperature is a measure of heat
Mostly by wind and current.
Convection.
Density determines how far apart molecules of a material are from one another, i.e. Density is the mass per unit of space. Due to this, density is related to the rate of heat transfer or thermal energy transfer. Thermal energy being transferred relies on the difference in the internal energy of molecules, mostly kinetic energy, as when heat is transferred, these molecules exchange energy by hitting into each other. By doing so, eventually thermal equilibrium is established. Summary - Density is related to the rate of heat transfer between two systems.
The thermal energy of any substance is the product of its specific heat and the temperature difference between it and the surroundings. So if you increase the temperature you directly increase the thermal energy, in proportion to the difference between its temperature and ambient temperature.