Correct answer
A. Both A. and B.
Explanation
The correct answer is Both A. and B..
1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour?
In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in________?
Rittinger number which designates the new surface produced per unit of mechanical energy absorbed by the material being crushed, depends on the ________?
Superphosphate is manufactured by reacting phosphate rock with________?
Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?
The shift conversion reaction taking place during water gas manufacture is given by________?