NaukowiecGirl

I'm currently studying Chemistry, Physics, Mathematics and other Arts. Grain sizes did show up in Chemistry, but I like to also see the Physics involved in Chemistry, like energy, etc. Seems like Physics and Chemistry are Intertwined with each other. It helps to understand a topic from a different view, cause then it makes more sense, like your explanation. Thank you again, I'll be sure to look out for entropy!!!

Ohh my goodness thank you so so much!! I finally understand it now; the gravitational potential energy is greater than the activation energy because it has more distance and thus energy to it compared to the small wall of the bowl which although requires some energy, it does not compare to the larger area/distance of GPE. Makes sense now, E2 is at a higher energy point but the majority of the table height belongs to the GPE, so GPE contains more energy overall. YAY I get it! I cannot thank you enough for your help! I really like your diagram too, it's a very good visual representation of the theory. Thank you for your encouragement too, I'll be sure to strive forward Thankyou.00 x 10^(50) !!!!

Ohh ok.... makes sense. So for processes, both chemical and physical, to achieve their lowest energy state, they must first receive a larger quantity of energy that will eventually reduce to zero once at its lowest state. And that is called activation energy. But I'm confused on entropy. Web sites have said that entropy measures the unavailable amounts of energy and that it measures the 'randomness' of the movement of particles. I'm confused about the meaning, what does it mean to measure unavailable energy? Thank you too for your help, I really appreciate it!!!

Yay! Thank you so much! This does help a lot! I never knew anything like this. Thank you again. But may I ask, why does a substance want to achieve a lower surface energy? I understand that liquids like water will combine in order to reduce their mass:surface ratio, resulting in lower surface energy, but why would a substance want that? This may sound absolutely ridiculous, but has it got something to do with the activation energies of electrons in orbitals? (electrons want the lower energy shells)

Hello, my chemistry topic is all about Metallic substances and their properties. I read that Annealing (which is heating just below melting point and allowing it to cool slowly) causes the metallic grains to expand in size. Why is that? Like, does heating a metal decrease grain size or something? What does heating do the the metallic structure? We're not being told why it happens, we're told it just does. Please help.

Hello! Thank you so much for your help! I understand this now. And it makes complete sense too. Considering the electromagnetic forces between the electrons and nucleus would be higher the closer they got to the center. Hence, requires greater energy to remove. Thank you!!!!

Hello! I'm Izzy! I'm new to this forum so hello from here!!! I need some help in Quantum Mechanics. I'm struggling to understand the differences and setting of electron shells. What exactly is the difference between Shells, Sub-shells and Orbitals? I know Sub-shells make up a whole shell but where do the orbitals come in? Please help....