Was it something to do with the fact that as the number of carbons increase, more CO2 and H2O can be made, and bond making is exothermic etc..?
I wrote as no. of C atoms increases the more C-C and C-H bonds are there.Reacting it with O2 means more bonds will be broken so more energy is released.I wrote this because I believe you were supposed to explain the trends of the graph but using the equation given as reference.
For the haloalkane changing to alkene, I wrote alcoholic alkali for reagent and reflux heating for conditions. Will I get the reagent right, even though I didn't specify what type of alkali?
i got like 20.277 kj , I divided it by # of moles which is 0.0515625
got answer 393-
I can recall the expression that was given in the exam Energy transferred = [(0.39 x mass of copper can) + ( 4.2 x mass of water)] x (temp change) Mass of copper = 300 g Mass of water = 400 g Temp change = 12.1 C So the answer comes to 21500 J somethin
For the haloalkane changing to alkene, I wrote alcoholic alkali for reagent and reflux heating for conditions. Will I get the reagent right, even though I didn't specify what type of alkali?
I feel like you might not. But then again, it depends on the mark scheme. That;s a dilemma for sure. For the condition I just put heating. Will that be enough?