M (C2H6) = n × M = 4.6 × 30 = 13.8 g.
We have that the work function of the metal

From the Question we are told that
UV radiation (λ = 162 nm)
Kinetic energy 
Generally the equation for Kinetic energy is mathematically given as


For more information on this visit
brainly.com/question/12669551?referrer=searchResults