Correct answer
A. (ρH – ρair)gH
Explanation
The correct answer is (ρH – ρair)gH.
Calcination of limestone is not done in a ________ kiln for producing lime?
Slurry reactors are characterised by the________?
Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is ________?
One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is________?
Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for________?
For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by ________?