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Stoichiometry

Stoichiometry
For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction)

Δ H
>ΔH

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Stoichiometry
For a neutral solution (pH = 7), the value of[H⁺] [OH⁻] is equal to

1
< 1
> 1

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Stoichiometry
Addition of a non-volatile solute to a pure solvent

Increases its boiling point
Decreases its freezing point
Both B and C
Increases its freezing point

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Stoichiometry
Heat of transition is the heat evolved or absorbed, when a substance is converted from

Vapor to liquid
Solid to liquid
One allotropic form to another allotropic form
Vapor to solid

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Stoichiometry
__________ equation gives the effect of temperature on heat of reaction.

Antonie
Kirchoffs
Kistyakowsky
Maxwell's

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Stoichiometry
A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is

630
880
380
760

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