Stoichiometry

As per Kirchhoff s equation, the heat of reaction is affected by the__________________?

Byadmin March 12, 2019August 30, 2021

As per Kirchhoff s equation, the heat of reaction is affected by the__________________?

A. Pressure
B. Volume
C. Temperature
D. Molecularity

Stoichiometry

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

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

A. (141.5/G) – 131.5
B. 145 – (145/G)
C. 200 (G-1)
D. (400/G) – 400

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

1 BTU/ft3 is approximately equal to _____________ kcal/m3?

1 BTU/ft3 is approximately equal to _____________ kcal/m3?

A. 1
B. 9
C. 4
D. 252

Read More 1 BTU/ft3 is approximately equal to _____________ kcal/m3?
Stoichiometry

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?

A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?

A. N2O4
B. N2O5
C. N2O3
D. None of these

Read More A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?
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 pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?

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 pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?

A. PvB
B. xB.PvB
C. (Patm – Pvw)xB
D. xB.Patm

Read More 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 pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?
Stoichiometry

Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume ‘X’ diffuses twice as fast as another perfume ‘Y’; what is the molecular weight of ‘Y’, if the vapor density of gas ‘X’ is 2? Molecular weight of gas ‘X’ is to be assumed to be 2 ?

Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume ‘X’ diffuses twice as fast as another perfume ‘Y’; what is the molecular weight of ‘Y’, if the vapor density of gas ‘X’ is 2? Molecular weight of gas ‘X’ is to be assumed to be 2 ?

A. 2
B. 4
C. 8
D. 16

Read More Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume ‘X’ diffuses twice as fast as another perfume ‘Y’; what is the molecular weight of ‘Y’, if the vapor density of gas ‘X’ is 2? Molecular weight of gas ‘X’ is to be assumed to be 2 ?
Stoichiometry

The heat of solution depends upon the____________________?

The heat of solution depends upon the____________________?

A. Nature of solvent
B. Concentration of solution
C. Nature of solute
D. All A., B. & C.

Read More The heat of solution depends upon the____________________?

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