The ammonia synthesis reaction represented by N2 + 3H2 ⇌ 2NH3; ΔH = – 22.4 kcal, is__________________?
A. Endothermic
B. Exothermic
C. Isothermal
D. Adiabatic
Thermodynamics for Chemical
Gibbs free energy at constant pressure and temperature under equilibrium conditions is___________________?
Gibbs free energy at constant pressure and temperature under equilibrium conditions is___________________?
A. ∞
B. 0
C. Maximum
D. Minimum
Consider the reaction, C + O2 ⇌ CO2; ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 → C + O2 ?
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
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__________________?
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__________________?
A. Solubility increases as temperature increases
B. Solubility increases as temperature decreases
C. Solubility is independent of temperature
D. Solubility increases or decreases with temperature depending on the Gibbs free energy change
of solution
Entropy is a measure of the _____________ of a system?
Entropy is a measure of the _____________ of a system?
A. Disorder
B. Orderly behaviour
C. Temperature changes only
D. None of these
An isentropic process is carried out at constant____________________?
An isentropic process is carried out at constant____________________?
A. Volume
B. Pressure
C. Temperature
D. All (A), B. and (C)
The specific heat of saturated water vapour at 100°C is__________________?
The specific heat of saturated water vapour at 100°C is__________________?
A. ∞
B. -ve
C. 0
D. +ve
The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of _____________ and COP are the same?
The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of _____________ and COP are the same?
A. Kinematic viscosity
B. Work
C. Temperature
D. None of these
Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture ______________ calorimeter is not used for measuring the dryness fraction of steam?
Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture ______________ calorimeter is not used for measuring the dryness fraction of steam?
A. Bomb
B. Separating
C. Bucket
D. Throttling
Specific volume of an ideal gas is____________________?
Specific volume of an ideal gas is____________________?
A. Equal to its density
B. The reciprocal of its density
C. Proportional to pressure
D. None of these