Give the formula that shows the relationship between the boiling point and the enthalpy of evaporation of a solvent.
(N/A) The relationship between the boiling point $(T_b)$ and the enthalpy of vaporization $(\Delta_{vap}H)$ of a solvent is described by Trouton's rule. For many liquids,the entropy of vaporization $(\Delta_{vap}S)$ is approximately constant at the boiling point. The relation is given by: $\Delta_{vap}S = \frac{\Delta_{vap}H}{T_b} \approx 88 \ J \ K^{-1} \ mol^{-1}$.
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For the following reaction,the relation between $\Delta H$ and $\Delta U$ is:
$2 SO_{2(g)} + O_{2(g)} \rightarrow 2 SO_{3(g)}$
$2 SO_{2(g)} + O_{2(g)} \rightarrow 2 SO_{3(g)}$
Which among the following are intensive and extensive properties respectively?
An ideal gas expands in volume from $1 \times 10^{-3} \ m^3$ to $1 \times 10^{-2} \ m^3$ at $300 \ K$ against a constant pressure of $1 \times 10^5 \ N \ m^{-2}$. The work done is
MediumAIEEE 2004
View SolutionFor the reaction $H_{2}F_{2(g)} \rightarrow H_{2(g)} + F_{2(g)}$,$\Delta U = -59.6 \ kJ \ mol^{-1}$ at $27^{\circ} C$. The enthalpy change for the above reaction is $(-)$ $kJ \ mol^{-1}$ [nearest integer]. Given: $R = 8.314 \ J \ K^{-1} \ mol^{-1}$.
DifficultJEE MAIN 2022
View SolutionExplain the measurement of $\Delta U$ and $\Delta H$ by calorimetry.
Medium
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