3662Chemical EngineeringMedium
Current employed in resistance welding ranges from ________ kVA/cm2?
A7.5 to 8.5
B10.5 to 15.5
C1.2 to 2.5
D4.5 to 6.2
Correct answer
D. 4.5 to 6.2
Explanation
The correct answer is 4.5 to 6.2.
Correct answer
D. 4.5 to 6.2
Explanation
The correct answer is 4.5 to 6.2.
The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is ________?
For a gaseous phase reaction, rate of reaction is equal to K. CA. CB. If the volume of the reactor is suddenly reduced to 1/4th of its initial volume, then the rate of reaction compared to the original rate will be ________ times?
For the irreversible reaction, Ca+ 2C = Ca C2, Δ H°298 = – 60000 J. mole-1. If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be________?
High pressure at the bottom of a distillation tower handling heat sensitive materials results in ________?
The co-efficient of drag and lift for an incompressible fluid depends on the________?
A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in ________ minutes?