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Stoichiometry

Stoichiometry
Claussius Clapeyron equation applies to the __________ process.

Vaporisation
Sublimation
All of these
Melting

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Stoichiometry
A vessel of volume 1000 m³ contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately

20
17
25
34

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Stoichiometry
The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the

Kistyakowsky equation
Trouton's rule
Kopp's rule
Antonie equation

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Stoichiometry
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are PvB and Pvw respectively. The partial pressure of benzene in air-vapour mixture is

(Patm - Pvw)xB
XB.Patm
XB.PvB
PvB

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

>ΔH
Δ H

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Stoichiometry
Which of the following expressions defines the Baume gravity scale for liquids heavier than water?

(400/G) - 400
145 - (145/G)
(141.5/G) - 131.5
200(G-1)

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