bcraig

Endy0816, Thank you for your input =) studiot, I feel I have a reasonable understanding of conduction, convection and radiation. And I wasn't too bothered about enthalpy and entropy. I really just wanted a bit of confirmation that I was roughly close. I am studying to be a process operator in the petrochemical industry and we have just a small assignment on the basics of chemistry and thermodynamics.I don't think I need a thorough understanding of the topic but just a simple understanding. Did you delete my other topic related to the same question? That was really my main concern regarding specific heat and heat transfer coefficient... They are the final points that I am trying to understand how they relate to my homework question.

This is my homework question: Explain the principles of heat energy transfer from one body to another with reference to the following terminology. Temperature difference, Enthalpy, Entropy, Coefficient of heat transfer, Specific heat transfer, Conduction, Convection, Radiation. This is my first week in this class and basically I have had no previous education in this field of thermodynamics or anything related really =S Please my excuse my stupidity. In this forum question I just want to cover Entropy and Enthalpy. This is what I have written so far and I am not sure if I even totally understand this. My questions: 1) ... struggling. Is this enough for a very very basic description? 2) Does this example so vaguely true?.. If I compress a spring, I am using the energy in my body which decreases my internal enthalpy and increased the universe entropy. The spring has an increase in enthalpy as it has the potential to string back. The amount of energy I have used to compress that spring may not be the the same quantity of energy passed to the spring as some of the energy has been exhausted to things such as the noise of the spring moving, and the temperature increase from pressure... 3) I don't understand "the product of pressure and volume." What is the product? 4) What is the internal energy? Is that like the amount of energy that will be exhausted from the potential for a compressed spring to uncompress?