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Chapter 10: Problem 8
The apparatus used for measuring heat of reaction at constant volume is called (a) calorimeter (b) colourimeter (c) pyrometer (d) pyknometer
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Thermochemistry is the study of (a) heat changes accompanying chemical reactions (b) net entropy change in a reaction (c) net free energy change in a chemical reaction (d) none of these
Standard heat of formation of an element is (a) infinite (b) zero (c) \(100 \mathrm{~kJ}\) (d) \(200 \mathrm{~kJ}\)
The heat of neutralisation is maximum for the reaction (a) \(\mathrm{NaOH}\) and \(\mathrm{HCl}\) (b) \(\mathrm{NaOH}\) and \(\mathrm{CH}_{3} \mathrm{COOH}\) (c) \(\mathrm{HCl}\) and \(\mathrm{NH}_{4} \mathrm{OH}\) (d) \(\mathrm{NH}_{4} \mathrm{OH}\) and \(\mathrm{CH}_{3} \mathrm{COOH}\)
The equations showing the effect of temperature change on the heat of reaction is known as (a) Arrhenius equation (b) Kirchhoff's equation (c) Ostwald's equation (d) none of these
A reaction whose heat of reaction shows the bond energy of \(\mathrm{HCl}\) is (a) \(\mathrm{HCl}(\mathrm{g}) \longrightarrow \mathrm{H}(\mathrm{g})+\mathrm{Cl}(\mathrm{g})\) (b) \(2 \mathrm{HCl}(\mathrm{g}) \longrightarrow \mathrm{Hl}(\mathrm{g})+\mathrm{Cll}(\mathrm{g})\) (c) \(\mathrm{HCl}(\mathrm{g}) \longrightarrow \frac{1}{2} \mathrm{H}_{2}(\mathrm{~g})+\frac{1}{2} \mathrm{Cl}_{2}(\mathrm{~g})\) (d) \(\mathrm{HCl}(\mathrm{g}) \longrightarrow \mathrm{H}^{+}(\mathrm{g}) \longrightarrow \mathrm{Cl}^{-}(\mathrm{g})\)
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