Question

calculate d energy in eV require to ionise 1mole of hydrogen?

Answer 1

i m little bit confuse

Answer 2

please help me too!

Answer 3

hmm hmm hmm...

so, hydrogen has only electron right? and you know from atomic structure that the energy of the electron in its ground state is -13.6eV right?

Answer 4

yes

Answer 5

So, when you are ionizing it, you are simply removing that one electron. Now there are no hindrances from any other attractions or repulsion in its vicinity, since there's just one electron in the entire atom.

So, when you supply 13.6eV volt of energy to 1 atom of 'H', the electron 'pops' out.

So similarly, how much for 1 mole of H atoms?

Answer 6

81.9128 * 10^23 ev. (multiply 13.6 with avogadro number) or 1312 kj per mole

Answer 7

Yes, correct-o!