Correct answer
A. Hess’s
Explanation
The correct answer is Hess’s.
Steam is preferred to be used as a heating medium in heat exchangers, because of its________?
Annealing of cast iron________?
Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)?
For a reciprocating pump, the indicator diagram is the graph between the________?
Vulcanisation of rubber decreases its________?
With increase in temperature, the vapor pressure of liquids________?