How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes ? Explain .

How does the atomic hydrogen or oxy-hydrogen torch function for cuttin

1.	How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes ? Explain .
Answer» Solution :Atomic hydrogen is produced when molecular hydrogenelectrodes (3773-4273K). `H_(2)underset(3773-4273K) overset("Electric arc")to 2H, DeltaH=435.9 KJ "mol"^(-1)` The lifetime of atomic hydrogen is 0.3 sec . And hence it immediately gets converted into the molecular FORM liberating a large amount of ENERGY which is used for cutting and welding purposes in form of atomic hydrogen TORCH as shown in Fig. 9.13