Atomic StructureHard
Question
The energy required to break one mole of Cl-Cl bonds in Cl2 is 242 kJ mol-1. The longest wavelength of light capable of breaking a single Cl - Cl bond is
(c = 3 × 108 ms-1 and NA = 6.02 × 1023 mol-1)
(c = 3 × 108 ms-1 and NA = 6.02 × 1023 mol-1)
Options
A.594 nm
B.640 nm
C.700 nm
D.494 nm
Solution
Energy required for 1 Cl2 molecule = 
Joules
This energy is contained in photon of wavelength ′λ′
= 4947
= 494 nm
JoulesThis energy is contained in photon of wavelength ′λ′
= 4947
= 494 nmCreate a free account to view solution
View Solution FreeMore Atomic Structure Questions
Calculate the energy in joule corresponding to light of wavelength 45 nm : (Planck′s constant h = 6.63 × 10-3...Nutural rubber has:...Sum of number of lone pair of electron and P−O−P linkage present in dimer of P2O5 are :-...The increasing order (lowest first) for the values of e/m (charge /mass) for electron (p),neutron (n) and alpha particle...For the following compounds, the correct statement(s) with respect to nucleophilic substitution reactions is(are)...