Answer to Question #87836 in General Chemistry for jason

Question

The energy required to break a molecular bond in a one mole sample is 965 kJ/mol. What is the longest wavelength of light capable of breaking this bond?

A. 2.06×10-22 nm
B. 1.24×10-7 nm
C. 1.24×10-16 nm
D. 124 nm
E. 1.24×105 nm

Answer 1

The energy required to break a molecular bond in a one mole sample is 965 kJ/mol. What is the longest wavelength of light capable of breaking this bond?

A. 2.06×10^-22 nm

B. 1.24×10^-7 nm

C. 1.24×10^-16 nm

D. 124 nm

E. 1.24×10⁵ nm

Solution:

ΔH = 965 kJ/mol

c = 3*10⁸ m/s

h = 6.626*10^-34

N_a = 6.02*10²³ mol^-1

 

Answer:

λ = 1.24*10^-7 nm.