Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to__________________?

Byadmin March 4, 2019August 24, 2021

Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to__________________?

A. Thermal spalling
B. Slag attack
C. Fusion under load
D. CO attack

Stoichiometry

In general, the specific heats of aqueous solutions _____________ with increase in the concentration of the solute?

In general, the specific heats of aqueous solutions _____________ with increase in the concentration of the solute?

A. Increase
B. Decrease
C. Remain unchanged
D. None of these

Read More In general, the specific heats of aqueous solutions _____________ with increase in the concentration of the solute?
Stoichiometry

The reaction A + B → C has been conducted in a reactor as shown below. The numbers of balances (material) that can be made around the reactor are________________?

The reaction A + B → C has been conducted in a reactor as shown below. The numbers of balances (material) that can be made around the reactor are________________?

A. 1
B. 2
C. 3
D. 4

Read More The reaction A + B → C has been conducted in a reactor as shown below. The numbers of balances (material) that can be made around the reactor are________________?
Stoichiometry

Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?

Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?

A. Charle’s law
B. Dalton’s law of partial pressures
C. Avogadro’s hypothesis
D. Boyle’s law

Read More Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?
Stoichiometry

A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c?

A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c?

A. 283
B. 566
C. 293
D. 141.5

Read More A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c?
Stoichiometry

The effect of pressure on the heat capacity of the gases ______________ is negligible?

The effect of pressure on the heat capacity of the gases ______________ is negligible?

A. At pressure below one atmosphere
B. Below the critical temperature
C. Both A. & B.
D. Neither A. nor B.

Read More The effect of pressure on the heat capacity of the gases ______________ is negligible?
Stoichiometry

The most convenient way of expressing solution concentration is in terms of___________________?

The most convenient way of expressing solution concentration is in terms of___________________?

A. Mole fraction
B. Normality
C. Molality
D. Molarity

Read More The most convenient way of expressing solution concentration is in terms of___________________?

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