Stoichiometry

Hot metal runner in blast furnace are lined with ______________ bricks?

Byadmin March 4, 2019August 24, 2021

Hot metal runner in blast furnace are lined with ______________ bricks?

A. Silica
B. Carborundum
C. Fireclay
D. Magnesite

Stoichiometry

1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?

1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?

A. 5
B. 10
C. 15
D. 20

Read More 1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
Stoichiometry

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

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

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

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

Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?

Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?

A. Water
B. Mercury
C. Carbon tetrachloride
D. None of these

Read More Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?
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

Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?

Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?

A. 10.73 kJ
B. 16.15 kJ
C. 18.11 kJ
D. 18.33 kJ

Read More Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?
Stoichiometry

Which of the following ratios defines the recycle ratio in a chemical process ?

Which of the following ratios defines the recycle ratio in a chemical process ?

A. Gross feed stream/recycle feed stream
B. Recycle stream/fresh feed stream
C. Recycle stream/gross feed stream
D. None of these

Read More Which of the following ratios defines the recycle ratio in a chemical process ?

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