Chemical Engineering Mcqs

For estimation of heat capacity of a solid compound, one can use________________?

• (A)  Clapeyron’s equation
• (B)  Gibb’s equation
• (C)  Kopp’s rule
• (D)  Trouton’s rule

Answer

Submitted By :Ali Uppal

40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is_________________?

• (A)  1/2
• (B)  1/3
• (C)  1/4
• (D)  2/3

Answer

Submitted By :Ali Uppal

Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?

• (A)  ΔH = 1 (+ ve) and Δ V = -ve
• (B)  ΔH = 0
• (C)  ΔV = 0
• (D)  Both

Answer

Submitted By :Ali Uppal

The heat change for the reaction, C(s) + 2S(s) → CS2(l), is 104.2 kJ. It represents the heat of_________________?

• (A)  Formation
• (B)  Solution
• (C)  Combustion
• (D)  Fusion

Answer

Submitted By :Ali Uppal

Which of the following is an exothermic reaction ?

• (A)  Conversion of graphite to diamond
• (B)  Decomposition of water
• (C)  Dehydrogenation of ethane to ethylene
• (D)  None of these

Answer

Submitted By :Ali Uppal

Number of gram equivalent of solute dissolved in one litre of solution is called its___________________?

• (A)  Normally
• (B)  Molarity
• (C)  Molality
• (D)  Formality

Answer

Submitted By :Ali Uppal

Kopp’s rule is helpful in finding the__________________?

• (A)  Heat capacities of solids
• (B)  Heat capacities of gases
• (C)  Molal heat capacities of gases
• (D)  Activation energy

Answer

Submitted By :Ali Uppal

Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the______________________?

• (A)  Same elevation in boiling point
• (B)  Different elevation in boiling point
• (C)  Elevation in boiling point in the ratio of their molecular weights
• (D)  None of these

Answer

Submitted By :Ali Uppal

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

Answer

Submitted By :Ali Uppal

Which of the following is not a unit of pressure ?

• (A)  Torr
• (B)  Newton/m2
• (C)  Parsec
• (D)  Ata, bar or Pascal

Answer

Submitted By :Ali Uppal