Consider a cylinder (of height 10m) full of water exposed to air. average velocity of air: 3 m/s density of air: 1.3 kg/m3 viscosity of air: 2 x 10-5 kg/m-s diffusivity of water vapor in air: 8 x 10-6 m2/s diameter of cylinder: 1 m temperature: 298 k saturated vapor pressure of water at 298 k: 23 mm hg relative humidity of ambient air: 50% assume mass transfer correlation for flat plate boundary layer theory nsh = 0.664 (nre)0.5 (nsc)0.33 i. what is the rate of water vapor evaporation in g/min? ii. will this flux be constant or will it change? if so, write the equation for the flux as a function of time.

helloi think dog cat bunny dog cat bunny dog cat bunny

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.

the answer is symmetrical : )