A. Value of absolute entropy
B. Energy transfer
C. Direction of energy transfer
D. None of these
Related Mcqs:
- The third law of thermodynamics states that the__________________?
A. Heat capacity of a crystalline solid is zero at absolute zero temperature
B. Heat transfer from low temperature to high temperature source is not possible without external
work
C. Gases having same reduced properties behaves similarly
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 - 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. - 1st law of thermodynamics is nothing but the law of conservation of___________________?
A. Momentum
B. Mass
C. Energy
D. None of these - The first law of thermodynamics is a restatement of the law of conservation of_________________?
A. Mass
B. Energy
C. Momentum
D. None of these - Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?
A. Reaction mechanism
B. Calculation of rates
C. Energy transformation from one form to another
D. None of these - The second law of thermodynamics states that___________________?
A. The energy change of a system undergoing any reversible process is zero
B. It is not possible to transfer heat from a lower temperature to a higher temperature
C. The total energy of system and surrounding remains the same
D. None of the above - First law of thermodynamics deals with the ___________________?
A. Direction of energy transfer
B. Reversible processes only
C. Irreversible processes only
D. None of these - Measurement of thermodynamic property of temperature is facilitated by ____________ law of thermodynamics?
A. 1st
B. Zeroth
C. 3rd
D. None of these - 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
