What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?

Stoichiometry
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?

A₂B

AB₂

AB₃

A₂B₃

A₂B

AB₂

AB₃

A₂B₃

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

1 kcal/m³ = 0.1124 BTU/ft³

1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³

1 BTU/lb = 2.3 kcal/kg

1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg

1 kcal/m³ = 0.1124 BTU/ft³

1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³

1 BTU/lb = 2.3 kcal/kg

1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg

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Stoichiometry
Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the

Attractive forces between like and unlike molecules are approximately equal

Component molecules are non-polar and no chemical combination or molecular association between unlike molecules takes place in the formation of the solution

All of these

Sizes of the component molecules are approximately equal

Attractive forces between like and unlike molecules are approximately equal

Component molecules are non-polar and no chemical combination or molecular association between unlike molecules takes place in the formation of the solution

All of these

Sizes of the component molecules are approximately equal

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Stoichiometry
The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation

Decreases with increasing pressure

Increases with pressure rise

Both B & C

Becomes zero at the critical point

Decreases with increasing pressure

Increases with pressure rise

Both B & C

Becomes zero at the critical point

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Stoichiometry
'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the

Log (temperature) vs. log (vapor pressure)

Temperature vs. log (vapor pressure)

Vapor pressure vs. log (temperature)

Vapor pressure vs. temperature

Log (temperature) vs. log (vapor pressure)

Temperature vs. log (vapor pressure)

Vapor pressure vs. log (temperature)

Vapor pressure vs. temperature

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Stoichiometry
Pick out the wrong unit conversion.

1 kPa = 100 bar

1 mm Hg = 1 torr = 133.3 Pa

None of these

1 atm. = 760 mm Hg = 29.92 inch Hg = 14.7 psi = 1.013 bar = 1.013 kgf/cm²

1 kPa = 100 bar

1 mm Hg = 1 torr = 133.3 Pa

None of these

1 atm. = 760 mm Hg = 29.92 inch Hg = 14.7 psi = 1.013 bar = 1.013 kgf/cm²

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Stoichiometry

Stoichiometry What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?

Stoichiometry Pick out the wrong unit conversion of calorific value.

Stoichiometry Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the

Stoichiometry The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation

Stoichiometry 'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the

Stoichiometry Pick out the wrong unit conversion.

Stoichiometry
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)?

Stoichiometry
Pick out the wrong unit conversion of calorific value.

Stoichiometry
Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the

Stoichiometry
The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation

Stoichiometry
'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the

Stoichiometry
Pick out the wrong unit conversion.