Question

How are energy heat and work related?

Answer 1

Hint: When we do any work on the machine, it increases its internal capacity in simple terms, the thermal energy of the constituent particles increases and the amount of the work performed on the system is often found to be proportional to this increase.

Complete answer:
First we need to know what heat is. Heat is the thermal energy transfer caused by a temperature difference; this variation in the temperature is often known as temperature gradient since heat is one type of the energy. It is measured in the units of the energy joules.
Two different ways of moving energy from one system to another are heat and the work.
In the field of thermodynamics, the distinction between work and the heat is significant.
Heat is the thermal energy transfer between systems, while work is the mechanical energy transfer between two systems.
 The difference between heat and work is crucial for the activity of the thermodynamics processes.
It is possible to turn heat into work and the work into heat but they are not the same thing.
According to the first thermodynamics law, both heat and the work contribute to a system’s overall internal energy but the second thermodynamics law restricts the amount of the heat that can be transformed into the work.
The second law requires work to be completely transformed into the heat, but prohibits heat to be converted into the work entirely.
 It would break the laws of the entropy if the heat could be completely converted into the work.
The Carnot efficiency gives the maximum amount of the work one can achieve from the heat.

Note:
As an approach to understand the difference between heat energy and the work first we saw the definition of the heat and the work which clarifies the difference then we saw the main difference between heat energy and the work which is given by the second law of thermodynamics.