Single Choice

Regarding a thermochemical equation a wrong statement is

AIt tells about the physical states of reactants and products
BIt tells whether the reaction is exothermic or endothermic
CIt tells about the allotropic form (if any) of the reactant
DIt tells whether the reaction is possible or not
Correct Answer

Solution

A thermochemical equation cannot tell whether the reaction is feasible or not. Free energy data is required to determine whether the reaction is feasible or not

SIMILAR QUESTIONS

Chemical Thermodynamics

Which of the following statements are correct?

Chemical Thermodynamics

For the reactions, (i) $${H}_{2}(g)+{Cl}_{2}(g)=2HCl(g)+x$$ $$kJ$$ (ii) $$2HCl(g)={H}_{2}(g)+{Cl}_{2}(g)-y$$ $$kJ$$ which one of the following statements is correct?

Chemical Thermodynamics

$$C(s)\, +\, O_2(g)\, \rightarrow\, CO_2(g);\quad \Delta H\, =\, -\,94.3$$ kcal/mol $$CO(g)\, +\, 1/2\, O_2(g)\, \rightarrow\, CO_2(g);\quad\Delta H\, =\, -\,67.4$$ kcal/mol $$O_2(g)\, \rightarrow\, 2O(g);\quad \Delta H\, =\, 117.4$$ kcal/mol $$CO(g)\, \rightarrow\, C(g)\, +\, O(g);\quad \Delta H\, =\, 230.6$$ kcal/mol Calculate $$\Delta H$$ for $$C (s)$$ $$\rightarrow$$ $$C(g)$$ in Kcal/mol.

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