Frequency of radiation $(\nu)$, $\nu=\frac{1}{2.0 \times 10^{-9} s}$ $\nu=5.0 \times 10^{8} s^{-1}$ Energy $(E)$ of source $=$ Nhv Where, $N$ is the no. photons emitted $\mathrm{h}$ is Planck's...
Lifetimes of the molecules in the excited states are often measured by using pulsed radiation source of duration nearly in the nanosecond range. If the radiation source has the duration of 
and the number of photons emitted during the pulse source is 
, calculate the energy of the source.
read more
(b) 
and (c) 
. Calculate the energy required to remove an electron completely from the n = 2 orbit. What is the longest wavelength of light in cm that can be used to cause this transition?
ergs. The ground-state electron energy is ![K_{c}=\frac{\left[N H_{3}{ }^{4}\left[\mathrm{O}_{2}\right]^{5}\right.}{[\mathrm{NO}]^{4}\left[\mathrm{H}_{2} \mathrm{O}\right]^{6}}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-951fdaf6f5740b9392c024eddb4c57da_l3.png "Rendered by QuickLaTeX.com")
Write the balanced chemical equation corresponding to this expression.
mol of 
mol of 
and 
of 
is introduced into a 
reaction vessel at 
. At this temperature, the equilibrium constant, 
for the reaction 
is 
Is the reaction mixture at equilibrium? If not, what is the direction of the net reaction?
is placed in a flask at a pressure of 
. At equilibrium, the partial pressure of 
is 
.What is 
for the given equilibrium? 
at 
Both the forward and reverse reactions in the equilibrium are elementary bimolecular reactions. What is 
(ii) 
![\[\left( \mathbf{i} \right)\text{ }\mathbf{Z}{{\mathbf{n}}^{\mathbf{2}+}},\text{ }\mathbf{C}{{\mathbf{a}}^{\mathbf{2}+}},\text{ }\mathbf{G}{{\mathbf{a}}^{\mathbf{3}+}},\text{ }\mathbf{A}{{\mathbf{l}}^{\mathbf{3}+}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-f9b656c6f512de0f78f5c9e95ea9e1bc_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{ii} \right)\text{ }{{\mathbf{K}}^{+}},\text{ }\mathbf{C}{{\mathbf{a}}^{\mathbf{2}+}},\text{ }\mathbf{S}{{\mathbf{c}}^{\mathbf{3}+}},\text{ }\mathbf{C}{{\mathbf{l}}^{}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-02a8f827fa33900690bdb99cc37e81aa_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{iii} \right)\text{ }{{\mathbf{P}}^{\mathbf{3}-}},\text{ }{{\mathbf{S}}^{\mathbf{2}-}},\text{ }\mathbf{C}{{\mathbf{l}}^{}},\text{ }{{\mathbf{K}}^{+}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-9e135ccca95537425808d01a2026aa19_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{iv} \right)\text{ }\mathbf{Ti}{{~}^{\mathbf{4}+}},\text{ }\mathbf{Ar},\text{ }\mathbf{C}{{\mathbf{r}}^{\mathbf{3}+}},\text{ }{{\mathbf{V}}^{\mathbf{5}+}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-31b52550d9bb732119e63c874ec47f83_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{A} \right)\text{ }\mathbf{1}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{p}}^{\mathbf{6}}}~\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-4e5bb330482f0744293b4adfc531e398_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{B} \right)\text{ }\mathbf{1}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{p}}^{\mathbf{4}}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-d6053c2db0981662ae5726905c36efc8_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{C} \right)\text{ }\mathbf{1}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{p}}^{\mathbf{6}}}~\mathbf{3}{{\mathbf{s}}^{\mathbf{1}}}~\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-a76e95b592ec114208946333898c356f_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{D} \right)\text{ }\mathbf{1}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{s}}^{\mathbf{2}}}~\mathbf{2}{{\mathbf{p}}^{\mathbf{5}}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-39a728458277f2c0c56b6f3caacd43ef_l3.png "Rendered by QuickLaTeX.com")
![\[\mathbf{O}\text{ }\left( \mathbf{g} \right)\text{ }+\text{ }\mathbf{e}\text{ }\to \text{ }{{\mathbf{O}}^{-}}\left( \mathbf{g} \right)\text{ };\text{ };\text{ }\text{ }\mathbf{HV}\text{ }=\text{ }\text{ }\mathbf{141}\text{ }\mathbf{kJ}\text{ }\mathbf{mol}\mathbf{1}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-8a59c39962cc77d1f2cc97ee1ec0e6bf_l3.png "Rendered by QuickLaTeX.com")
![\[{{\mathbf{O}}^{-}}\left( \mathbf{g} \right)\text{ }+\text{ }\mathbf{e}\text{ }\to \text{ }{{\mathbf{O}}^{\mathbf{2}-}}\left( \mathbf{g} \right)\text{ };\text{ }\text{ }\mathbf{HV}\text{ }=\text{ }+\text{ }\mathbf{780}\text{ }\mathbf{kJ}\text{ }\mathbf{mol}\mathbf{1}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-105b68e8c79fc1248ada69c0cf9a98de_l3.png "Rendered by QuickLaTeX.com")
![\[~\left( \mathbf{i} \right)\text{ }\mathbf{I}\text{ }>\text{ }{{\mathbf{I}}^{-}}>\text{ }{{\mathbf{I}}^{+}}^{{}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-7a8b80587c7e4bf72c9cd196715177bc_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{ii} \right)\text{ }\mathbf{I}+>\text{ }{{\mathbf{I}}^{-}}>\text{ }\mathbf{I}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-a7464c368804f0a28cde1894bd32bb60_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{iii} \right)\text{ }\mathbf{I}\text{ }>\text{ }{{\mathbf{I}}^{+}}>\text{ }{{\mathbf{I}}^{-}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-61edf3a246a74100367d9431971a553f_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{iv} \right)\text{ }{{\mathbf{I}}^{-}}>\text{ }\mathbf{I}\text{ }>\text{ }{{\mathbf{I}}^{+}}^{{}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-7de79f7e5e8187314bd7962083407d61_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{i} \right)\text{ }{{\mathbf{F}}^{}}~<\text{ }{{\mathbf{O}}^{\mathbf{2}-}}~<\text{ }\mathbf{M}{{\mathbf{g}}^{\mathbf{2}+}}~<\text{ }\mathbf{N}{{\mathbf{a}}^{+}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-acaf0dffafbb532357bb7c961ba42536_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{ii} \right)\text{ }\mathbf{M}{{\mathbf{g}}^{\mathbf{2}+}}~<\text{ }\mathbf{N}{{\mathbf{a}}^{+}}<\text{ }{{\mathbf{F}}^{}}<\text{ }{{\mathbf{O}}^{\mathbf{2}-}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-59b8fd0e0bc02f09a0dce6105e1a3ee9_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{iii} \right)\text{ }{{\mathbf{O}}^{\mathbf{2}-}}<\text{ }{{\mathbf{F}}^{}}~<\text{ }\mathbf{N}{{\mathbf{a}}^{+}}<\text{ }\mathbf{M}{{\mathbf{g}}^{\mathbf{2}+}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-70ee46859ecff0f07d87ddf80025e958_l3.png "Rendered by QuickLaTeX.com")
![\[\left( \mathbf{iv} \right)\text{ }{{\mathbf{O}}^{\mathbf{2}-}}~<\text{ }{{\mathbf{F}}^{}}~<\text{ }\mathbf{M}{{\mathbf{g}}^{\mathbf{2}+}}~<\text{ }\mathbf{N}{{\mathbf{a}}^{+}}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-dd8b58c28bec5d6d898ba3debf2d258c_l3.png "Rendered by QuickLaTeX.com")