How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes? Explain.
(N/A) Atomic hydrogen atoms are produced by the dissociation of dihydrogen $(H_2)$ with the help of an electric arc.
This process releases a huge amount of energy $(435.88 \ kJ \ mol^{-1})$.
This energy is utilized to generate a temperature of approximately $4000 \ K$,which is ideal for welding and cutting metals.
Atomic hydrogen is allowed to recombine on the surface to be welded,releasing the stored energy to generate the required high temperature.
This process releases a huge amount of energy $(435.88 \ kJ \ mol^{-1})$.
This energy is utilized to generate a temperature of approximately $4000 \ K$,which is ideal for welding and cutting metals.
Atomic hydrogen is allowed to recombine on the surface to be welded,releasing the stored energy to generate the required high temperature.
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Similar Questions
Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ Hydrogen is an environment-friendly fuel.
Reason $R:$ Atomic number of hydrogen is $1$ and it is a very light element.
In the light of the above statements,choose the correct answer from the options given below:
Assertion $A:$ Hydrogen is an environment-friendly fuel.
Reason $R:$ Atomic number of hydrogen is $1$ and it is a very light element.
In the light of the above statements,choose the correct answer from the options given below:
The correct statements among $(a)$ to $(d)$ are:
$(a)$ Saline hydrides produce $H_2$ gas when reacted with $H_2O$.
$(b)$ Reaction of $LiAlH_4$ with $BF_3$ leads to $B_2H_6$.
$(c)$ $PH_3$ and $CH_4$ are electron-rich and electron-precise hydrides,respectively.
$(d)$ $HF$ and $CH_4$ are called as molecular hydrides.
$(a)$ Saline hydrides produce $H_2$ gas when reacted with $H_2O$.
$(b)$ Reaction of $LiAlH_4$ with $BF_3$ leads to $B_2H_6$.
$(c)$ $PH_3$ and $CH_4$ are electron-rich and electron-precise hydrides,respectively.
$(d)$ $HF$ and $CH_4$ are called as molecular hydrides.
What do you understand by the term non-stoichiometric hydrides? Do you expect this type of hydrides to be formed by alkali metals? Justify your answer.
Medium
View SolutionWhich chemical is used as a refrigerant in refrigerators?
Medium
View SolutionExplain Ionic Hydrides (Saline Hydrides),Covalent (molecular hydrides),and Metallic (non-stoichiometric hydrides) with examples.
Difficult
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