info@clay6.com
logo

Ask Questions, Get Answers

X
 
Answer
Comment
Share
Q)

The ionization enthalpy of hydrogen atom is $1.312 \times 10^{6} \; J/mol$. The energy required to excite the electron in the atom from $n=1 \rightarrow n = 2$ is:

\begin{matrix} (A)\; 8.51 \times 10^5 \; J/mol \\ (B)\; 6.56 \times 10^5 \; J/mol \\ (C)\; 7.56 \times 10^5 \; J/mol \\ (D)\; 9.84 \times 10^5 \; J/mol \end{matrix}

1 Answer

Comment
A)
Need homework help? Click here.
Ans: $(D)\; 9.84 \times 10^5 \; J/mol $
$\Delta E = E_2 - E_1 = \large\frac{-1.312 \times 10^6}{2^2} - $$ \large\frac{-1.312 \times 10^6}{1^2}$$ = (-0.328 + 1.312) \times 10^6$
$\Delta E = 9.84 \times 10^5 \; J/mol$
Home Ask Homework Questions
...