Exchange Definition and 262 Threads

When N2 and H2 are reacted in a bomb calorimeter to form NH3 the temperature of the bomb calorimeter and the water it contains increases. Is the energy required to break the bonds in the reactants greater or less than the energy released during the formation of the bonds of the prouducts. I...

I never really understood the stock exchange. :cry: Can anyone explain it to me in detail :-p

I was wondering if their is a critical distance for quark exchange. say you have a proton and a neutron in the nucleus. When the quarks get very close to each other they exchange from the proton to the netron. they can no longer tell the difference between its up quark and the neutron's up quark...

I can't solve this problem. Could anyone help me? A piece of metal with a mass of 2kg and specific heat of 200J/kg C is initially at a temperature of 120 C. The metal is placed into an insulated container that contains a liquid of mass 4kg, a specific heat of 600J/kg C, and an initial...

Hey guys, please help. Two people, one of mass 65kg and the other of mass 40kg, sit in a rowboat of mass 85kg. With the boat initially at rest, the two people, who have been sitting at opposite ends of the boat, 4.0m apart from each other, exchange seats. How far will the boat move? and in...

As far as I can see, the exchange particle involved in gravitational forces is the graviton. However, in the markscheme for both the original and revised EDEXCEL A-Level Physics PHY3 Topics Paper (topic C) it states that it is the photon. Which is correct, or are both correct? Why is there this...

Economics is also a social sciences branch. So, I post this here but if moderators find that my question is not appropriate to stay here, please move it to the place where it should be,Thank you very much, Very short question, that has anyone of you, gurus, senpai, etc any experience in...

Mind to Mind: Mr. Dennett & Mr. Gautama Exchange Ideas (NOTE: The main body of this thread, though written as a fantasy :cool:, prepares for earnest “test questions” posed at the end of the thread.) Good day ladies and gentlemen, welcome to Mind to Mind! Sit back and enjoy as we utilize...

Suppose two particles bound by electromagnetic interaction, kind of hidrogen atom. How do you calculate the number of virtual photons exchanged by unit of time? Has this frequency of exchange some meaning in usual textbooks?

How much US dollars can I get if I have 10 000 TaiWan Dollars?

I would like to exchange books on nanotechnology and modern physics Popular science books only I am too young for all that math if you have a book had read already and it's just laying around contact me here please I live in Israel

Here is a horribly misguided theory from my youth. I polished it up a bit and gave it a name. If anyone wants this theory, they can have it. MicroElectroMagnetoValence Theory Tenets:[list=1] The fundamental electric and magnetic charges are 1/6 of the elementary electric and magnetic...