1. The problem statement, all variables and given/known data Consider a polyene consisting of N double bonds and assume the length of the box in which the π electrons are confined is Na, where a is a suitable lenght. What would the lenght for hexatriene be? You will need to choose a value for a, and should justify your choice. Hexatriene has 3 double bonds and 2 single bonds. 3. The attempt at a solution The only thing I can think of us: doing avarage of lenght of c-c and c=c bonds, multiplying it by the number of double bonds and then by 2? Lenght= N*2*BL BL= bond lenght though you don't really have 2 time the number of double bonds.. that's what is messing me up. hence a=2BL ?