1. What is entropy?
2.With every energy transfer, what form of energy is always released?
I think 2 is Heat?
not sure about 1
You are correct about the second question. In any energy transfer or transformation, heat is always released.
Now, let's move on to the first question. Entropy is a concept in thermodynamics that relates to the randomness or disorder of a system. It can also be seen as a measure of the unavailable energy in a system, or the amount of energy that cannot be converted into useful work.
To understand entropy, you can consider the example of a room with gas molecules. Initially, the molecules may be concentrated in one corner of the room, which would be a low entropy state since the arrangement is ordered and predictable. As time goes on, the gas molecules will spread out and fill the entire room, resulting in a higher entropy state. The molecules become more disordered and it becomes difficult to predict the specific location of each molecule.
Entropy tends to increase in isolated systems over time. This is known as the second law of thermodynamics, which states that the entropy of an isolated system will either stay constant or increase. Systems naturally tend towards higher entropy because there are more ways for particles and energy to be randomly distributed than there are for them to be concentrated.
To summarize, entropy is a measure of the randomness or disorder of a system, and it tends to increase in isolated systems over time.