In a nutshell:
- Chemical reactions love stability.
- Usually if heat is given off, the chemicals are happier as they are more stable.
- This should happen naturally, like a ball rolling down a hill.
- But if you <em>force </em>chemicals to do things that make them more <em>unstable, </em>you're going to have to put energy in.
- Like forcing a ball up a hill, it isn't naturally going to roll up without you putting in energy.
- "exo-" means "away from" and "endo-" means "within". Think about this in terms of heat, or energy.
- heat released -> exothermic reaction (energy escapes)
- heat put in -> endothermic reaction (energy is put within)
Also the word "enthalpy" and ΔH is used a lot to relate to energy.
A negative ΔH means heat loss and a positive ΔH means heat put in as well.
Hope this helps ;)
Hello There!
The correct answer is A i'd say. This is due to a process called diffusion.
Hope This Helps You!
Good Luck :)
The best and most correct answer among the choices provided by your question is The best and most correct answer among the choices provided by your question is the last choice.
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Answer:
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