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Thermal energy is what is practically the ONLY source of energy for any work. Thermal energy cools, heats, runs motors, etc.

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Why is thermal energy produced not generally usable to do work?

Thermal energy tends to disperse in the environment, making it difficult to harness for useful work. This dispersion leads to an increase in entropy, reducing the available energy for performing work efficiently. Converting thermal energy directly into useful work often requires specialized and inefficient processes.


How to find thermal efficiency in a system?

To find thermal efficiency in a system, you can use the formula: Thermal Efficiency (Useful Energy Output / Energy Input) x 100. This calculation involves determining the amount of useful energy produced by the system compared to the total energy input. The higher the thermal efficiency percentage, the more effectively the system converts energy into useful work.


What is the efficiency of an engine that gives off thermal energy?

The efficiency of an engine that gives off thermal energy is determined by the ratio of the useful work output to the total energy input. It can be calculated using the formula Efficiency = (Useful work output / Total energy input) x 100%. A higher efficiency indicates that the engine is converting more of the input energy into useful work.


Which form of energy is the most randomized and most difficult to put to useful work?

Thermal energy is the most randomized form of energy because it manifests as random motion of particles in a substance. It is difficult to convert thermal energy into useful work because it tends to disperse and equalize, making it challenging to harness and direct for productive purposes.


Why is thermal energy produced not generally usable to do work?

Thermal energy is not generally usable to do work because it is often in a disordered form, making it difficult to convert into a useful and organized energy source like mechanical energy. This is due to the second law of thermodynamics, which states that heat naturally flows from hot to cold areas, making it challenging to harness thermal energy for productive work.


What is thermal efficiency?

Thermal efficiency is a measure of how efficiently a system converts heat energy into mechanical work. It is calculated by dividing the desired output (such as work) by the input energy (such as heat) and is expressed as a percentage. Higher thermal efficiency indicates that more of the input energy is being converted into useful work.


What is one of the energy released that isn't useful when coal is burnt?

One of the energy releases that isn't useful when coal is burned is thermal energy in the form of heat that is lost to the surrounding environment, rather than being converted into useful work or electricity.


What is thermal energy converted into work called?

what is thermal energy converted into work called


How do you determine mechanical thermal and relative efficiency?

Mechanical efficiency is determined by dividing the output work by the input work, while thermal efficiency is calculated by dividing the useful work output by the heat input. Relative efficiency is the ratio of mechanical efficiency to thermal efficiency and can be used to compare the effectiveness of a machine in converting input energy to useful work.


In a machine is work output is less than work input because some energy is converted into thermal energy?

In a machine, work output is less than work input due to energy losses from friction, air resistance, and other inefficiencies. Some of the input energy is converted into thermal energy, leading to a decrease in the useful work output of the machine.


What Useful energy is in a washing machine?

Useful energy in a washing machine includes electrical energy to power the motor and controls, kinetic energy for agitating and spinning the drum, and thermal energy to heat water for washing. These forms of energy work together to clean clothes efficiently.


Why is thermal energy useless?

Thermal energy is not inherently useless; it is a form of energy associated with the motion of particles in a substance. However, in some contexts, thermal energy may be considered less efficient or desirable compared to other forms of energy because it is often difficult to control or convert into useful work without significant loss.