Internal energy is - Vidyadip

MCQ

Internal energy is

✓
Partly potential and partly kinetic
B
Totally kinetic
C
Totally potential
D
None of these

✓

Answer

Correct option: A.

Partly potential and partly kinetic

(a)The exact value of internal energy is not known as it includes all type of energies of molecules constituting the given mass of matter such as translational, vibrational, rotational. The kinetic & potential energy of the nuclei & electron with in the individual molecules and the manner in which the molecule are linked together etc.
$E = {E_{translational}} + {E_{rotational}} + {E_{vibrational}}$
Thus, we can say that internal energy is partly potential and partly kinetic.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 5. Thermodynamics and thermochemistry→5. Thermodynamics and thermochemistry — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

$\begin{matrix}
Cl \\
| \\
Ph-C-C{{H}_{3}} \\
| \\
Cl \\
\end{matrix}\xrightarrow{3NaN{{H}_{2}}}\underset{\Pr oduct}{\mathop{(A)}}\,;$ Product $(A)$ is

The intermediate during the addition of $HCl$ to propene in the presence of peroxide is

Heat of formation of $C{O_2}(g),\,\,{H_2}O(l)$ and $C{H_4}(g)$ are $ -94.0, -68.4$ and $-17.9\, kcal$ respectively. The heat of combustion of methane is.....$kcal$

Consider an imaginary ion ${ }_{22}^{48} X ^{3-}$. The nucleus contains 'a'$\%$ more neutrons than the number of electrons in the ion. The value of '$a$' is $.....$ [nearest integer]

$o-$ nitrophenol can be easily steam distilled whereas $p-$ nitrophenol cannot be. This is because of

The enthalpy of the reaction,

${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(g)$ is $\Delta {H_1}$ and that of

${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(l)$ is $\Delta {H_2}$. Then

The oxidation state of sulphur in $SO_4^{2 - }$ is

The enthalpy of neutralisation of $KOH$ by weak acid $(HA)$ is $- 12.2\ kcal\ mol^{-1}$ . If the weak acid was $10\%$ ionised, then the enthalpy of dissociation of $1\ mole\ HA$ is. Given the enthalpy of neutralistation $KOH$ by $HCl$ is $- 13.7\ kcal\ mol^{-1}$ .

The oxidation of benzene by $V_2O_5$ in the presence of air produces and high tempreture

Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)