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Thermodynamics · 2005 · Shift 0

3 Chemistry questions from this JEE Main paper

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JEE Main
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2005 · Shift 0
Chemistry
Thermodynamics

Thermodynamics · 2005 · Shift 0

3 Chemistry questions from this JEE Main paper

Q2.Consider the reaction: $N_{2}$ + 3 $H_{2}$ $\to$ 2 $N H_{3}$ carried out at constant temperature and pressure. If $Δ H$ and $Δ U$ are the enthalpy and internal energy changes for the reaction, which of the following expressions is true?
Chemistry · Thermodynamics · MCQ
Q3.If the bond dissociation energies of $X Y$ , $X_{2}$ and $Y_{2}$ (all diatomic molecules) are in the ratio of 1:1:0.5 and $Δ H_{f}$ for the formation of $X Y$ is -200 kJ mole-1. The bond dissociation energy of $X_{2}$ will be :
Chemistry · Thermodynamics · MCQ
Q4.Consider an endothermic reaction, X $\to$ Y with the activation energies Eb and Ef for the backward and forward reactions, respectively. In general :
Chemistry · Thermodynamics · MCQ