Stoichiometry — Part 2 MCQs with Explanations

Absolute temperature is a measure of the kinetic energy of molecules is the correct answer to “Kinetic theory of gases stipulates that, the”. This question is standard in competitive examination syllabi for Stoichiometry.

273°C is the correct answer to “At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant”. This question is standard in competitive examination syllabi for Stoichiometry.

$$\frac{1}{3}$$ is the correct answer to “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”. This question is standard in competitive examination syllabi for Stoichiometry.

76 cms of Hg is the correct answer to “The vapor pressure of water at 100°C is”. This question is standard in competitive examination syllabi for Stoichiometry.

Facilitates better control of the process is the correct answer to “A bypass stream in a chemical process is useful, because it”. This question is standard in competitive examination syllabi for Stoichiometry.

Recycle stream/fresh feed stream is the correct answer to “Which of the following ratios defines the recycle ratio in a chemical process”. This question is standard in competitive examination syllabi for Stoichiometry.

Both(a)&(b) is the correct answer to “Heat of reaction is a function of the”. This question is standard in competitive examination syllabi for Stoichiometry.

The route/method through which final products are obtained is the correct answer to “Heat of reaction is not influenced by”. This question is standard in competitive examination syllabi for Stoichiometry.

Do not exert attractive force on each other is the correct answer to “Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules”. This question is standard in competitive examination syllabi for Stoichiometry.

All of the above is the correct answer to “Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature”. This question is standard in competitive examination syllabi for Stoichiometry.

10-11 is the correct answer to “The OH - concentration in a solution having pH value 3 is”. This question is standard in competitive examination syllabi for Stoichiometry.

Centipoise is the correct answer to “The viscosity of water at room temperature may be around one”. This question is standard in competitive examination syllabi for Stoichiometry.

Gaseous is the correct answer to “A vapor that exists above its critical temperature is termed as a __________ vapor.”. This question is standard in competitive examination syllabi for Stoichiometry.

-136.5°C is the correct answer to “A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be”. This question is standard in competitive examination syllabi for Stoichiometry.

-136.5°C is the correct answer to “A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be”. This question is standard in competitive examination syllabi for Stoichiometry.

Poise is the correct answer to “Which of the following is not a unit of kinematic viscosity”. This question is standard in competitive examination syllabi for Stoichiometry.

2M is the correct answer to “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”. This question is standard in competitive examination syllabi for Stoichiometry.

Both A & B is the correct answer to “Ideal solution is formed, when its components have zero”. This question is standard in competitive examination syllabi for Stoichiometry.

-1632.3 is the correct answer to “The heat evolved in the combustion of benzene is represented by the equation: C 6 H 6 + 7.5O 2 = 6CO 2 + 3H 2 O, ΔH = 3264.6 kJ/kg.mole The heat energy change, when 39 gm of C 6 H 6 is burnt in an open container, will be __________ kJ/kg.mole.”. This question is standard in competitive examination syllabi for Stoichiometry.

10 is the correct answer to “If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.”. This question is standard in competitive examination syllabi for Stoichiometry.

Decreases is the correct answer to “The atomic heat capacities of all solid elements __________ with decrease in temperature.”. This question is standard in competitive examination syllabi for Stoichiometry.

Increases is the correct answer to “At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature.”. This question is standard in competitive examination syllabi for Stoichiometry.

Increases is the correct answer to “At higher temperatures, molal heat capacities for most of the gases (at constant pressure) __________ with increase in temperature.”. This question is standard in competitive examination syllabi for Stoichiometry.

2 is the correct answer to “Assuming that CO 2 obeys perfect gas law, calculate the density of CO 2 (in kg/m 3 ) at 263°C and 2 atm.”. This question is standard in competitive examination syllabi for Stoichiometry.

1 is the correct answer to “1 Pascal (unit of pressure) is equal to __________ N/m 2 .”. This question is standard in competitive examination syllabi for Stoichiometry.

J/kg°K is the correct answer to “The unit of specific heat at constant pressure, C p , in SI unit is”. This question is standard in competitive examination syllabi for Stoichiometry.

R is the correct answer to “C p - C v , for an ideal gas is equal to”. This question is standard in competitive examination syllabi for Stoichiometry.

Conversion is the correct answer to “A 'limiting reactant' is the one, which decides the __________ in the chemical reacation.”. This question is standard in competitive examination syllabi for Stoichiometry.

Both B and C is the correct answer to “The heat of vaporisation __________ with increase in pressure.”. This question is standard in competitive examination syllabi for Stoichiometry.

Less than is the correct answer to “The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.”. This question is standard in competitive examination syllabi for Stoichiometry.

40 is the correct answer to “CaCO 3 contains __________ percent of Ca by weight.”. This question is standard in competitive examination syllabi for Stoichiometry.

Smaller than is the correct answer to “Percentage saturation of a vapor bearing gas is always __________ the relative saturation.”. This question is standard in competitive examination syllabi for Stoichiometry.

0°K is the correct answer to “C p equals C v at”. This question is standard in competitive examination syllabi for Stoichiometry.

1.66 is the correct answer to “$$\frac{{{{\text{C}}_{\text{p}}}}}{{{{\text{C}}_{\text{v}}}}}$$ for monoatomic gases is”. This question is standard in competitive examination syllabi for Stoichiometry.

°API = (141.5/G) - 131.5 is the correct answer to “Specific gravity on API scale is given by the relation(where, G = specific gravity at 15.5°C).”. This question is standard in competitive examination syllabi for Stoichiometry.

J/kg.°K is the correct answer to “C p is expressed in S.I. unit as”. This question is standard in competitive examination syllabi for Stoichiometry.

1020 is the correct answer to “The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________”. This question is standard in competitive examination syllabi for Stoichiometry.

2263 is the correct answer to “One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m 3 . It cools to 98°C; the saturation pressure is 0.943 bar; one kg of water vapour under these conditions has a volume of 1.789 m 3 . The latent heat of condensation (kJ/kg -1 ) under these conditions is”. This question is standard in competitive examination syllabi for Stoichiometry.

1 kgf/cm2 is the correct answer to “1 ata is equivalent to”. This question is standard in competitive examination syllabi for Stoichiometry.

2.42 lb/ft.hr is the correct answer to “1 centipoise is equivalent to”. This question is standard in competitive examination syllabi for Stoichiometry.