Question
Write resonating structures of $\text{O}_3$.
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Answer
Resonating Structures of Ozone:
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Define critical temperature of the gas. Give its expression.
OR
Define critical temperature.
OR
Define critical temperature.
Calculate the standard enthalpy of formation of $\mathrm{C}_2 \mathrm{H}_4(\mathrm{~g})$ from the following thermochemical equation.
$\mathrm{C}_4 \mathrm{H}_8(\mathrm{~g})+6 \mathrm{O}_2(\mathrm{~g}) \rightarrow 4 \mathrm{CO}_2+4 \mathrm{H}_2 \mathrm{O}$
Given that $\Delta_{\mathrm{f}} \mathrm{H}^{\ominus}$ of $\mathrm{CO}_2(\mathrm{~g}), \mathrm{H}_2 \mathrm{O}(\mathrm{g})$ as -393.5 and $-249 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively.
→$\mathrm{C}_4 \mathrm{H}_8(\mathrm{~g})+6 \mathrm{O}_2(\mathrm{~g}) \rightarrow 4 \mathrm{CO}_2+4 \mathrm{H}_2 \mathrm{O}$
Given that $\Delta_{\mathrm{f}} \mathrm{H}^{\ominus}$ of $\mathrm{CO}_2(\mathrm{~g}), \mathrm{H}_2 \mathrm{O}(\mathrm{g})$ as -393.5 and $-249 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively.
Which method can be used to find out strength of reductant/ oxidant in a solution?
What do you understand by the terms:
Water-gas shift reaction.
Water-gas shift reaction.
i. Why is Boyle's law obeyed by $\mathrm{N}_2, \mathrm{O}_2$ or $\mathrm{CO}_2$ only at low pressure and high temperature?
ii. Compare the rate of diffusion of HCl and $\mathrm{NH}_3$ (Atomic masses of $\mathrm{H}=1 \mathrm{u}, \mathrm{Cl}-35.7 \mathrm{u}, \mathrm{N}=14 \mathrm{u}$ ).
→ii. Compare the rate of diffusion of HCl and $\mathrm{NH}_3$ (Atomic masses of $\mathrm{H}=1 \mathrm{u}, \mathrm{Cl}-35.7 \mathrm{u}, \mathrm{N}=14 \mathrm{u}$ ).
Write the IUPAC name of the following compounds :
Dissolved oxygen in water is very important for aquatic life. What processes are responsible for the reduction of dissolved oxygen in water?
$\text{N}_2(\text{g})+3\text{H}_2(\text{g})\rightleftharpoons2\text{NH}_3(\text{g});$
$\text{K}=0.50\text{ at }673\text{K.}$
Write the equilibrium expression and equilibrium constant for reverse reaction.
→$\text{K}=0.50\text{ at }673\text{K.}$
Write the equilibrium expression and equilibrium constant for reverse reaction.
The combustion of benzene(I) gives $\mathrm{CO}_2(\mathrm{g})$ and $\mathrm{H}_2 \mathrm{O}(\mathrm{I})$. Given that heat of combustion at constant volume is $-3263.9 \mathrm{~kJ} \mathrm{~mol}^{-1}$ at $25^{\circ} \mathrm{C}$; calculate heat of combustion in $\mathrm{kJ} \mathrm{~mol}{ }^{-1}$ at constant pressure. $\left[\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\right]$
→Explain why temperature of a boiling liquid remains constant?