How do you draw enthalpy level diagrams?

Answer 1

its difficult to illustrate on this but basically the x axis is the progress of the reaction going from reactants to products the Y axis is the enthalpy, depending on whether it is an endothermic or expthermic reaction the chemicla reactants start at either high (for exothermic) or low (for endothermic). exothermic start high as you might say the reactants hold alot of energy hence why when the reaction takes place they release the energy. The fact that they release the energy means that when the reaction is finished the products will have lower enthalpy in an exothermic reaction as some energy is lost as heat along the way

the graph physically looks like this:http://www.avogadro.co.uk/h_and_s/bondenthalpy/hdiagrams.gif but you need an understanding of it to draw your own

Answer 2

There is much information you can get from reading a pressure enthalpy diagram. Included is the liquid/vapor dome region, reading vapor fraction, the Lever Rule, reading pressure, reading enthalpy, reading temperature, reading entropy, and reading volume.

Answer 3

Enthalpy level diagrams are typically drawn by plotting the energy (enthalpy) of reactants, transition states, and products on the vertical axis and the reaction coordinate (progress of reaction) along the horizontal axis. The diagram provides a visual representation of energy changes during a reaction and helps understand the relative energy levels of the different species involved. Special attention is given to the energy changes at each step of the reaction pathway.