NEET UG CHEMISTRY MCQ: THERMODYNAMICS

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Analyzing +4 | -1

Enthalpy of neutralization of the reaction between

\mathrm{CH}_3 \mathrm{COOH} \text{(aq)}

and

\mathrm{NaOH} \text{(aq)}

-13.2 \mathrm{~kcal/eq}

and that of the reaction between

\mathrm{H}_2 \mathrm{SO}_4(\mathrm{aq})

and

\mathrm{KOH}(\mathrm{aq})

-13.7 \mathrm{~kcal} / \mathrm{eq}.

The enthalpy of dissociation of

\mathrm{CH}_3 \mathrm{COOH}(\mathrm{aq})

View answer and explanation

Correct option: B

+0.5 \mathrm{~kcal} \mathrm{~eq}^{-1}

Option B (+0.5 kcal/eq^-1) is correct because it is the difference between the standard enthalpy of neutralization and the experimental enthalpy of neutralization.

More Questions from THERMODYNAMICS

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The internal energy of one mole of a gas is: An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If

{T_i}

is the initial temperature and

{T_f}

is the final temperature, which of the following statements is correct? For which of the process, ∆S is negative? The work done by a weightless piston in causing an expansion ∆V (at constant temperature), when the opposing pressure, P is variable, is given by: Assertion :- At constant pressure of the change

\mathrm{H}_2 \mathrm{O}(\mathrm{s}) \rightarrow \mathrm{H}_2 \mathrm{O}(\mathrm{g})

work done is negative.

Reason :- During phase transition work done is always negative. For the reaction,

\mathrm{X}_2 \mathrm{O_4(l}) \longrightarrow 2 \mathrm{XO}_2(\mathrm{g}), \Delta U=2.1 \mathrm{~kcal}, \Delta S=20 \mathrm{~cal} \mathrm{~K}^{-1}

300 \mathrm{~K}

. Hence,

\Delta G