Problem 7: 

Electric   furnace to produce  

An electric furnace is used to produce  as per the following   reaction:

 

Power consumption is 4 kilowatt -hour /Kg of .The   reacts with  according to the reaction

  

Given



Mean heat capacity of cold water =

Required:

1. The minimum Power to produce 1 ton of  per hour.
2. The electro – thermal energy efficiency of the furnace operation.
3. If 200 g. of  is treated with 20 kg.  Of cold  , calculate the rise in temperature?

Calcium carbide is a very important reagent and is used to desulphurize pig iron.
You can try; the answers are

a)

b)

c)