2311Chemical EngineeringMedium
Cast iron vessels are not suitable for the storage of________?
AH2SO4 (fuming)
BH2SO4 (95%) at room temperature
CWet SO2
DFreon
Correct answer
C. Wet SO2
Explanation
The correct answer is Wet SO2.
Correct answer
C. Wet SO2
Explanation
The correct answer is Wet SO2.
Resistance to slag attack of a refractory ________?
A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m3 and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m2.K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is________?
A fertilizer contains 82% N2. It could be________?
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio)?
In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is________?
Vibrating screens have capacity in the range of ________ tons/ft2.mm mesh size?