Home
Class 12
CHEMISTRY
If H(2)(g)=2H(g),DeltaH=104cal , then he...

If `H_(2)(g)=2H(g),DeltaH=104cal` , then heat of atomisation of hydrogen is

A

`52 kcals`

B

`104 kcals`

C

`20 kcals`

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
For diatomic molecule, bond dissociation enthalpy is equal to heat of atomization.
Promotional Banner

Similar Questions

Explore conceptually related problems

Given that: i. C(s) + O_(2)(g) rarr CO_(2)(g) , DeltaH =- 94.05 kcal ii. H_(2)(g) +(1)/(2) O_(2)(g) rarr H_(2)O(l), DeltaH =- 68.32 kcal iii. C_(2)H_(2)(g) +(5)/(2) O_(2)(g) rarr 2CO_(2)(g) +H_(2)O(l),DeltaH =- 310.62 kcal The heat of formation fo acetylene is

If H_(2)(g) Then heat of atomization of H_(2) is

The following reaction are given : CH_(4(g))+2O_(2(g))toCO_(2(g))+2H_(2)O(g),DeltaH=-x C_((s))+O_(2(g))toCO_(2(g)),2H_(2(g)),DeltaH=-y H_(2(g))+(1)/(2)O_(2(g))toH_(2)O_((g)),2H_(2(g)),DeltaH=-z calculate the heat of formation of CH_(4) ?

NH_(3)(g)+3C1_(2)(g)rarrNCL_(3)(g)+3HC1(g)DeltaH_(1) N_(2)(g)+3H_(2)(g)rarr2NH_(3),DeltaH_(2) H_(2)(g)+CL_(2)(g)rarr2HC1(g),DeltaH_(1) The heat of fomation of NC1_(2)(g) in the terms of DeltaH_(1) , DeltaH_(2) and DeltaH_(3) is

NH_(3)(g) + 3Cl_(2)(g) rarr NCl_(3)(g) + 3HCl(g), " "DeltaH_(1) N_(2)(g) + 3H_(2)(g) rarr 2NH_(3)(g), " "Delta H_(2) H_(2)(g) + Cl_(2)(g) rarr 2HCl(g), " "Delta H_(3) The heat of formation of NCl3(g) in the terms of DeltaH_(1), DeltaH_2 and DeltaH_(3) is :