Stoichiometry

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

Byadmin March 4, 2019August 24, 2021

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

Stoichiometry

A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container___________________?

A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container___________________?

A. Will be greater than 298 K
B. Will be 298 K
C. Will be less than 298 K
D. Cannot be determined

Read More A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container___________________?
Stoichiometry

The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour________________?

The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour________________?

A. Measures the elevation in boiling point
B. Is not dependent on the temperature
C. Is a function of the liquid phase composition
D. Measures the depression in freezing point

Read More The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour________________?
Stoichiometry

The evaporation of aqueous solution of sugar causes its molarity to__________________?

The evaporation of aqueous solution of sugar causes its molarity to__________________?

A. Decrease
B. Increase
C. Remain unchanged
D. Either A. or B.; depends on the concentration of the solution

Read More The evaporation of aqueous solution of sugar causes its molarity to__________________?
Stoichiometry

The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?

The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?

A. 2M
B. M/2
C. M
D. M/4

Read More The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?
Stoichiometry

Unit of power is____________________?

Unit of power is____________________?

A. Joule
B. Watt
C. Joule/Second
D. Both B. & C.

Read More Unit of power is____________________?
Stoichiometry

Maximum alumina content in high alumina refractory can be as high as ____________ percent?

Maximum alumina content in high alumina refractory can be as high as ____________ percent?

A. 30
B. 50
C. 70
D. 90

Read More Maximum alumina content in high alumina refractory can be as high as ____________ percent?