In a reversible process__________________?
In a reversible process__________________?
A. Tds = dE + dW
B. dE – dW = Tds
C. dW – dE = Tds
D. Tds – dW + dE >0
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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. ThrottlingFugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?
Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?A. Decreases
B. Decreases exponentially
C. Increases
D. Remain constantAir-refrigeration cycle________________?
Air-refrigeration cycle________________?A. Is the most efficient of all refrigeration cycles
B. Has very low efficiency
C. Requires relatively large quantities of air to achieve a significant amount of refrigeration
D. Both B. and CWhich of the following is not a common refrigerant ?
Which of the following is not a common refrigerant ?A. Freon-12
B. Ethylene
C. Ammonia
D. Carbon dioxideWhich of the following identities can be most easily used to verify steam table data for superheated steam ?
Which of the following identities can be most easily used to verify steam table data for superheated steam ?A. (∂T/∂V)S = (∂p/∂S)V
B. (∂T/∂P)S = (∂V/∂S)P
C. (∂P/∂T)V = (∂S/∂V)T
D. (∂V/∂T)P = -(∂S/∂P)TThe thermodynamic law, PVy = constant, is not applicable in case of______________?
The thermodynamic law, PVy = constant, is not applicable in case of______________?A. Ideal compression of air
B. Free expansion of an ideal gas
C. Adiabatic expansion of steam in a turbine
D. Adiabatic compression of a perfect gas