MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Bond Order and Enthalpy

A sample of h...

Question

A sample of hydrogen gas $H_{2}$ is irradiated by a light of $λ = 432.25 A$ and all hydrogen after atomization gets excited to 3rd orbit. Assuming no energy loss to the surroundings, determine the bond energy of $H_{2}$ in $k J /$

Open in App

Solution

Given Radiation energy= $λ = 432.25 R$
Radiant energy= $\frac{1242}{432.25} = 2.87 k J / m o l$
Given that no loss of energy
$K . E$ = Radiation energy- Dissociation energy
$d = 2.87 -$ dissociation energy
$\Rightarrow$ Dissociation energy= $2.87 k J / m o l$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The energy required to excite

1 L

of hydrogen gas at

1 a t m

298 K

to the first excited state of atomic hydrogen. The energy for the dissociation of

H — H

436 k J m o l^{- 1}

Q. Calculate the energy required to excite

1

L of hydrogen gas at

1

298

K to the first excited state of atomic hydrogen. The energy for the dissociation of

H - H

436 k J m o l^{- 1}

Q. The energy required to break one mole of hydrogen-hydrogen bonds in

H_{2}

436 k J

. What is the longest wavelength of light required to break a single hydrogen-hydrogen bond?

Q. Calculate the energy required to excite two litre of hydrogen gas at 1 atom and 298 k to the first excited state of atomic hydrogen. The energy for the disassociation of H

_{2}

bond is 436 kJ mol

^{- 1}

. Also calculate the minimum frequency of photon to break this bond.

Q. A sample of hydrogen gas contain 100 atoms. All the atoms are excited to the same n excited state. The energy released by all the atoms is

\frac{4800}{49}

. R = 13.6 eV), as they come to the ground state through various types of transition Then Find

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Bond Parameters

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Bond Order and Enthalpy

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon