while following the dumas method, a student assumes that the contents of the container are the same temperature as the water bath. If this is not true, and the material in the container is cooler, how will this influence the calculations?​

i'm assuming that the correct answer is indeed the first one/ "a"..

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

bcde is the incorrect answer it is a

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.