Stoichiometry

Increasing the temperature of an aqueous solution will cause decrease in its________________?

Byadmin March 12, 2019August 30, 2021

Increasing the temperature of an aqueous solution will cause decrease in its________________?

A. Molality
B. Mole fraction
C. Weight percent
D. Molarity

Stoichiometry

The heat capacity of most substances is greater for the _______________ state?

The heat capacity of most substances is greater for the _______________ state?

A. Solid
B. Liquid
C. Gaseous
D. None of these

Read More The heat capacity of most substances is greater for the _______________ state?
Stoichiometry

Addition of a non-volatile solute to a pure solvent ____________________?

Addition of a non-volatile solute to a pure solvent ____________________?

A. Increases its freezing point
B. Increases its boiling point
C. Decreases its freezing point
D. Both B. and C.

Read More Addition of a non-volatile solute to a pure solvent ____________________?
Stoichiometry

The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ O2 = CO2, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is _____________ kJ/kg. mole?

The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ O2 = CO2, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is _____________ kJ/kg. mole?

A. -109.5
B. +109.5
C. +180
D. +100

Read More The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ O2 = CO2, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is _____________ kJ/kg. mole?
Stoichiometry

According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?

According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?

A. T
B. T0.5
C. T1.5
D. T2

Read More According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?
Stoichiometry

Kopp’s rule is useful for the determination of_____________________?

Kopp’s rule is useful for the determination of_____________________?

A. Molal heat capacities of gases
B. Heat capacities of solids
C. Activation energy
D. Heat capacities of gases

Read More Kopp’s rule is useful for the determination of_____________________?
Stoichiometry

Atomic ______________ of an element is a whole number?

Atomic ______________ of an element is a whole number?

A. Weight
B. Number
C. Volume
D. Radius

Read More Atomic ______________ of an element is a whole number?

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