5471Chemical EngineeringMedium
Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ________ Nm3?
A2.5
B1
C1/3
D0.5
Correct answer
A. 2.5
Explanation
The correct answer is 2.5.
Correct answer
A. 2.5
Explanation
The correct answer is 2.5.
Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of ________ °C?
Absorption accompanied with chemical reaction is exemplified by the absorption of________?
The process by which fine solids is removed from liquids is termed as ________?
Disappearance of snow in subzero weather exemplifies the process of________?
Pick out the wrong statement?
An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is________?