Binding energy if electron in metal is 250 kj/mol what is the threshol

1.	Binding energy if electron in metal is 250 kj/mol what is the threshold frequency of metal
Answer» BINDING energy =250kJ/mol =250,000 J/mol. E=hv where E is binding energy per MOLE, h is PLANCK's constant=6.626×10^-34 m/s and VIS the threshold FREQUENCY to be found. 2.5×10^5/6.626×10^-34 = threshold frequency => 3.773 ×10^38 Hz. Hope it helps you...

Discussion