Why can doing work produce heat, are the two proportional

Because force can convert mechanical work into other physical and chemical work in addition to mechanical work. For example, the engine can not only convert mechanical work, but also convert physical thermal work and chemical work, such as the chemical work of oil deterioration, which is inseparable from the power of the engine. The ideal 100% conversion of mechanical work is only an ideal, not a reality.

That is, as long as the mechanical work is converted, there must be thermal work. Is it proportional? It's proportional to time, not to power.

According to the first law of thermodynamics, there is w+q=δe, and the thermodynamic energy of an object changes as the sum of external work done and heat absorption.

Work is also called mechanical work.

is the cumulative physical quantity in physics that represents the space in which the force acts on the object, and the work is a scalar quantity equal to the product of the force and the distance that the object passes in the direction of the force, the International System of Units.

The unit is joules.

The term "work" was first coined by the French mathematician Gustave Coriolli.

If an object is subjected to a force and there is a displacement in the direction of the force, we are said to have done work on the object. Work is a physical quantity in physics that represents the accumulation of force to displacement. with mechanical energy.

Similarly, work is also a scalar quantity, and the SI unit is joules. 1j=1n·m=1kg·m2·s-2

Heat refers to the energy converted during the energy conversion process due to the presence of temperature differences. Like work, it is a form of energy transfer in the system, and can be used as a measure of the change in the amount of energy in the system. In the process of heat transfer, it is essentially the process of energy transfer, and heat is a measure of energy conversion.

Heat and work are two different forms of energy transfer that accompany the change of the state of the system, and they are measures of the transfer of energy in different forms, and they are both related to the intermediate process of the state change, so they are not a function of the state of the system.

Heat, when the state of the system changes to the destruction of the thermal equilibrium conditions, that is, when there is a temperature difference between the system and the outside world, people say that there is a thermal interaction between the system and the outside world. As a result of the action, energy is transferred from a hot object to a low temperature object, and the energy transferred at this time is called heat.

It is clear that work and heat.

Both are a form of source hail repentance energy.

And there are many forms of work.

Such as electrical work, heat energy, and so on.

And the heat is only one way to spread the hail.

Work and heat are of course different concepts, work is the unit of force, heat is the unit of energy, because there is work, so there is heat.

It's all energy, and it's the same unit.

There is nothing wrong with this statement that work can be completely converted into heat.

However, it is wrong that heat cannot be completely converted into work.

Because, under certain premises, heat can be completely converted into work. It's just that this process will inevitably have an impact on the outside world. Therefore, on the premise of not affecting the outside world, heat cannot be completely converted into work.

For example, the isothermal expansion of an ideal gas is an example of the complete conversion of heat into work. However, this process produces other cleaning effects (changes in gas, key, volume, and pressure), and I hope this helps.

As long as it is proposed that in a certain situation, heat can be converted into a posture work, it is a service that has strayed into the second type of perpetual motion machine! It has long been denied by the second law of thermodynamics and the third law of thermodynamics.

There is nothing wrong with this statement that work can be completely converted into heat, however, it is wrong that heat cannot be completely converted into work.

Under certain conditions, heat can be completely converted into work. It's just that this process will inevitably have an impact on the outside world, so under the premise that Chi Shi does not have an impact on the outside world, the heat cannot be completely converted into work.

If the resultant force of the force experienced by the object is f, and the displacement direction of the initial motion and the final motion is the same as f, then the object does positive work; If the resultant force of the force experienced by the object is f, and the displacement direction of the initial motion and the final motion is opposite to f, then the object does negative work; Work is a scalar quantity, the positive or negative of the work does not represent the magnitude, and the work of +3j is smaller than the work of -5j.

The object absorbs the heat, and the internal energy of the object must increase, which is wrong.

There are two ways in which the internal energy of an object can change.

1) Do the work. The internal energy of an object can be changed. (e.g. drilling wood for fire) 2) Heat transfer can change the internal energy of an object. When the object absorbs heat and at the same time does external work, the internal energy may be reduced.

If the object is only absorbing heat and nothing else is happening, then its internal energy increases.

Possibly. The First Law of Thermodynamics:

E increment = Q+W