Stoichiometry

Disappearance of snow in subzero weather exemplifies the process of_________________?

Byadmin March 12, 2019August 30, 2021

Disappearance of snow in subzero weather exemplifies the process of_________________?

A. Evaporation
B. Sublimation
C. Vaporisation
D. Melting

Stoichiometry

An equation for calculating vapour pressure is given by, log10 P = A – B(t + c). This is called the________________?

An equation for calculating vapour pressure is given by, log10 P = A – B(t + c). This is called the________________?

A. Kistyakowsky equation
B. Antoine equation
C. Kopp’s rule
D. Trouton’s rule

Read More An equation for calculating vapour pressure is given by, log10 P = A – B(t + c). This is called the________________?
Stoichiometry

What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?

What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?

A. AB3
B. A2B3
C. A2B
D. AB2

Read More What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?
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 ?
Stoichiometry

2 litres of nitrogen at N.T.P. weighs ______________ gms ?

2 litres of nitrogen at N.T.P. weighs ______________ gms ?

A. 14
B. 2.5
C. 28
D. 1.25

Read More 2 litres of nitrogen at N.T.P. weighs ______________ gms ?
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

The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________________?

The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________________?

A. 3.01 × 1022
B. 6.02 × 1023
C. 9.03 × 1024
D. 1.20 × 1024

Read More The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________________?

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