Archive for the ‘Chemistry’ Category
Monday, December 15th, 2008
HunteR What is the difference in energy for a hydrogen atom with its electron in a 2s orbital and in a 2p orbital?
CHEMISTRY
Tags: 2s, Electron, Hydrogen Atom, Orbital Chemistry
Posted in Chemistry | No Comments »
Friday, December 5th, 2008
gsingh_2011
In my chemistry class we use the Rydberg constant for hydrogen. Are there constants for other elements as well? Where can I find these values? Also, as far as I know, the Lyman, Balmer, and Paschen series only concern the hydrogen atom. Are there other series for other atoms, because that would mean there are a lot of series… or is it derived from these series?
Tags: Atoms, Balmer, Chemistry Class, Constants, Elements, Energy Series, Hydrogen Atom, Hydrogen Energy, Lot, Lyman, Paschen Series, Rydberg Constant For Hydrogen
Posted in Chemistry | 1 Comment »
Monday, December 1st, 2008
gsingh_2011
In my chemistry class we use the Rydberg constant for hydrogen. Are there constants for other elements as well? Where can I find these values? Also, as far as I know, the Lyman, Balmer, and Paschen series only concern the hydrogen atom. Are there other series for other atoms, because that would mean there are a lot of series… or is it derived from these series?
Tags: Atoms, Balmer, Chemistry Class, Constants, Elements, Energy Series, Hydrogen Atom, Hydrogen Energy, Lot, Lyman, Paschen Series, Rydberg Constant For Hydrogen
Posted in Chemistry | 1 Comment »
Saturday, August 30th, 2008
mimi asked: AND……………..What quantum number is associated a hydrogen atom orbital that has an energy of −4.445 x 10−20 J?
Tags: Hydrogen Atom, Hydrogen Energy, Quantum Number
Posted in Chemistry | 1 Comment »
Friday, August 29th, 2008
jim h asked: Let’s say one uses 100 kilowatt generating capacity to produce hydrogen from water using electrolysis, and runs the process for one hour. If he then turns around and uses the hydrogen to generate electricity, how much can he generate? Can he then produce 25 kilowatts for one hour? 50 kw? In other words, is the return from electrolysis 25%? Is it 50%? I am interested in the storage capacity from hydrogen produced with renewable energy. Thanks.
Tags: Electricity, Energy Output, Energy Water, Hydrogen Electrolysis, Hydrogen From Water, Kilowatt, Kilowatts, Kw, Renewable Energy, Storage Capacity, Water Electrolysis
Posted in Chemistry | 1 Comment »
Friday, August 29th, 2008
hihowru2001 asked: i mean we can get clean and cheap energy from water through chemical action by separating hydrogen and oxygen that exist in the water and can use this hydrogen and oxygen in cars and all kind of engines
Tags: Cheap Energy, Chemical Action, Clean Energy, Clean Water, Energy Source, Energy Water, Hindrance, Hydrogen Cars, Hydrogen Energy, Oxygen Water
Posted in Chemistry | 2 Comments »
Monday, August 25th, 2008
kiki C asked: What quantum number is associated a hydrogen atom orbital that has an energy of −4.445 x 10−20 J?
Tags: Hydrogen Atom, Hydrogen Energy, Quantum Number
Posted in Chemistry | 2 Comments »
Sunday, August 24th, 2008
Scott asked: When filling a confined space with just hydrogen and oxygen gas, and then igniting the gasses, what is the optimal ratio of hydrogen to oxygen to release the most energy?
Also, what happens if you change the ratio? Do other ratios change the time, temperature, energy, etc. of the explosion?
Tags: Explosion, Gasses, Hydrogen Gas, Optimal Ratio, Oxygen Gas, Ratios, Time Temperature
Posted in Chemistry | 1 Comment »
Sunday, August 24th, 2008
L asked: What quantum number is associated a hydrogen atom orbital that has an energy of -2.689 x 10-20 J?
Tags: Hydrogen Atom, Hydrogen Energy, Quantum Number
Posted in Chemistry | 1 Comment »
Friday, August 22nd, 2008
Karin S asked: I try to anwser this question and found the formula that describes the energy of each of the quantum states of a hydrogen-like ion. I pretty quess i have to work with this but don’t know exactly how.
E= -13.60 eV / n^2 = -3.40 eV / n^2
And I am also not 100% sure wheter this is the right formula I have developed.
Thanks
Tags: Carbon Atom, Energy Levels, Hydrogen Atom, Quantum States, Wheter
Posted in Chemistry | 2 Comments »
