Exothermic, like extrovert, means gives out heat (Thermic). Endothermic means taking in or absorbin heat
An exothermic reaction (can):
a) Releases heat
Heat is the total vibration energy of all the particles in a solid. In general this is true, however you can get a reaction that liberates pure light and no heat.
b) Liberates Energy
This means that chemical potential energy stored through the arrangement of atoms is reduced and converted to other forms of energy.
c) Produces and increase in temperature of the surroundings
In general this is true you can measure an exothermic reaction produces a rise in temperature. The exception would be say the generation of steam from liquid water, here the temperature of stays the same.
d) all of the above
In general all of the above answers are correct.
About Me
- drhill
- I come from a Science family: My father Geoffrey Hill was Australia's first computer programmer on CSIRAC the fourth computer in the world. He is credited with invention of Computer music and the development of “Interprogram” a language before Basic. My PhD is in Atomic and Molecular Physics. I have researched the activated oxygen layer above the ozone layer, and 'Assigned' the world's smallest molecule. At the University of Toronto I researched high power UV lasers. I have specialized in automation in fibre optics. This developed into research in Machine Intellect and Robots. I have enjoyed work as an Explainer with Questacon and my time as a part-time soldier. I currently teach High School Science at Epping Boys’ High.