Increase in the specific gravity of petroleum products indicates________?

Which of the following is not correct for a reversible adiabatic process?

Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than ________ mg/kg of kerosene?

Power consumption during turbulent flow in agitation tank is proportional to the ________ of the liquid?

Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of ________ humidity?

Benzol is used________?