Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of ______________ °C?

Byadmin March 4, 2019August 24, 2021

Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of ______________ °C?

A. 770
B. 570
C. 270
D. 70

Stoichiometry

A vapor whose partial pressure is less than its equilibrium vapor pressure is called the _____________ vapor?

A vapor whose partial pressure is less than its equilibrium vapor pressure is called the _____________ vapor?

A. Saturated
B. Superheated
C. Unsaturated
D. Dry gaseous

Read More A vapor whose partial pressure is less than its equilibrium vapor pressure is called the _____________ vapor?
Stoichiometry

The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?

The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?

A. Potential energy
B. Intermolecular forces
C. Kinetic energy
D. Total energy

Read More The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?
Stoichiometry

The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________?

The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________?

A. Basic
B. More acidic
C. Neutral
D. Of the same acidity

Read More The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________?
Stoichiometry

The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 × __________?

The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 × __________?

A. 1026
B. 1023
C. 1020
D. 1019

Read More The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 × __________?
Stoichiometry

1 Pascal (unit of pressure) is equal to _______________ N/m2 ?

1 Pascal (unit of pressure) is equal to _______________ N/m2 ?

A. 10
B. 1
C. 0.1
D. 1000

Read More 1 Pascal (unit of pressure) is equal to _______________ N/m2 ?
Stoichiometry

Mass number of an atom is the sum of the numbers of_________________?

Mass number of an atom is the sum of the numbers of_________________?

A. Neutrons and protons
B. Protons and electrons
C. Neutrons and electrons
D. Both A. & B.

Read More Mass number of an atom is the sum of the numbers of_________________?

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