🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs111
Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the_______________?
ALow pressure and high temperature
BLow pressure and low temperature
CHigh pressure and low temperature
DHigh pressure and high temperature
112
Gibbs free energy of a pure fluid approaches _____________ as the pressure tends to zero at constant temperature?
AInfinity
BMinus infinity
CZero
DNone of these
113
Which is a state function ?
ASpecific volume
BWork
CPressure
DTemperature
114
The quantitative effect of temperature on chemical equilibrium is given by the____________________?
AVan’t-Hoff equation
BLe-Chatelier’s principle
CArrhenius equation
DNone of these
115
The ammonia synthesis reaction represented by N2 + 3H2 ⇌ 2NH3; ΔH = – 22.4 kcal, is__________________?
AEndothermic
BExothermic
CIsothermal
DAdiabatic
116
Gibbs free energy at constant pressure and temperature under equilibrium conditions is___________________?
A∞
B0
CMaximum
DMinimum
117
Consider the reaction, C + O2 ⇌ CO2; ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 → C + O2 ?
A-94 kcal
B+94 kcal
C> 94 kcal
D< -94 kcal
118
If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as__________________?
ASolubility increases as temperature increases
BSolubility increases as temperature decreases
CSolubility is independent of temperature
DSolubility increases or decreases with temperature depending on the Gibbs free energy change of solution
119
Entropy is a measure of the _____________ of a system?
ADisorder
BOrderly behaviour
CTemperature changes only
DNone of these
120
With increase in temperature, the atomic heat capacities of all solid elements_________________?
AIncreases
BDecreases
CRemains unchanged
DDecreases linearly