A. Reaction mechanism
B. Calculation of rates
C. Energy transformation from one form to another
D. None of these
Related Mcqs:
- Third law of thermodynamics is concerned with the__________________?
A. Value of absolute entropy
B. Energy transfer
C. Direction of energy transfer
D. None of these - Second law of thermodynamics is concerned with the_________________?
A. Amount of energy transferred
B. Direction of energy transfer
C. Irreversible processes only
D. Non-cyclic processes only - Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is________________?
A. 0
B. 1
C. ∞
D. None of these - At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?
A. μ° + RT ln f
B. μ°+ R ln f
C. μ° + T ln f
D. μ° + R/T ln f - Measurement of thermodynamic property of temperature is facilitated by ____________ law of thermodynamics?
A. 1st
B. Zeroth
C. 3rd
D. None of these - “If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them”. This is ______________ law?
A. Hess’s
B. Kirchoff’s
C. Lavoisier and Laplace
D. None of these - Third law of thermodynamics is helpful in___________________?
A. Prediction of the extent of a chemical reaction
B. Calculating absolute entropies of substances at different temperature
C. Evaluating entropy changes of chemical reaction
D. Both B. and C. - Which law of the thermodynamics provides basis for measuring the thermodynamic property ?
A. First law
B. Zeroth law
C. Third law
D. Second law - Fundamental principle of refrigeration is based on the ______________ law of thermodynamics?
A. Zeroth
B. First
C. Second
D. Third - Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass ?
A. dE = Tds – PdV
B. dQ = CvdT + PdV
C. dQ = CpdT + Vdp
D. Tds = dE – PdV
