Under the same conditions how many mL of 1M KOH and 0.5 M ${{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}$ solutions, respectively when mixed for a total volume of 100 mL produce the highest rise in temperature?

NEET UG CHEMISTRY MCQ: THERMODYNAMICS

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Under the same conditions how many mL of 1M KOH and 0.5 M

{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}

solutions, respectively when mixed for a total volume of 100 mL produce the highest rise in temperature?

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Correct option: D

\;\;50\mathrm{ }:\mathrm{ }50

Option D (50 : 50) is correct because the highest rise in temperature occurs when the acid and base completely neutralize each other, which happens at the stoichiometric ratio.

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