Recent content by crays

So sorry that i did not clearly define my question, yes air current.

Dear physics forum, I'm currently working on a project and wondering what should the air temperature difference be to create a strong pulling force ? I'm working on creating a sustainable house, the concept is to have a enclosed glass roof with an opening that allows the sun to heat the air...

Thanks a lot for clarification and the help :)

So sorry for the late reply, it is written wave number, v (x 106 m-1) by m-1 i assume it is wave length. From my book it says that frequency is equals to c/lambda but not proportional to. Clarification please. cause if its wavelength, it should be h x 1/wavelength x c.

Hi guys, i know how to name monodentate ligand complexes but there is a particular one that my textbook and teacher's notes is quite the opposite, its regarding the fac and mer isomer. for a Ma3b3 structure, a fac forms a face and a mer have the ligands in meridian position, but for these...

Hi, I've a question that shows me a diagram for wavelength, there's 4 of them 11.1 x 106 10.5 x 106 9.7 x 106 8.4 x 106 then it asked me to determine the ionisation energy of hydrogen in KJ mol-1 by using the above spectrum. From what i know E = hf f = c/lambda lambda being the...

Hehe thanks borek~

Thanks :) but then again, it is a 7 marks question. So by adding NaOH and filter and yield the acid back by adding acid. This would really give me the 7 marks would it @_@ ?

I'm also a student but I'm going to try this, since the rate law stated that Rate = k[A][B2] so my assumption is A + B2 ---> AB + B B + A ----> AB since the rate law is Rate = k[A][B2] it should means that the slow steps consist of 1 mol of A and 1 mol of B2

NaCl is soluble because it is ionic. oh oh, can i add NaOH ? So that the benzoic dissolve in it :) ?

Hi guys, I've got a question which i couldn't solve. Both napthalene (two benzene ring join together) and benzoic acid are aromatic compounds which exist as white solids. Based on their physical ahd chemical properties, describe how you could separate the components of a mixture of these...

Sorry am still a student, but i thought this question might not fit into the homework area, what i was actually looking for was Nitration of Ammonia to form Nitrogen Oxide hehe. 4NH3 + 5O2 <---> 6H2O + 4NO

Hi guys, i remember there is a process that produce ammonia from nitrogen oxides, either NO2 or NO but i couldn't remember the equation and couldn't find it online, all i get was haber process when the word ammonia is there. Anyone have any idea?

Any help please?

Hi guys, here i have two question, but i don't understand the answer at all. For the standard enthalphy change question 5) b) i) shouldn't it be standard enthalphy change = Product - Reactant? But from the answer it was given as reactant - product. For question number 8, i don't understand...