Q.1
Domestic refrigerator usually works on the __________ refrigeration cycle.
Q.2
At absolute zero temperature, the __________ of the gas is zero.
Q.3
The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for
Q.4
On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)S and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) )
Q.5
For an ideal gas, the activity co-efficient is
Q.6
Fundamental principle of refrigeration is based on the __________ law of thermodynamics.
Q.7
Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.
Q.8
An irreversible process
Q.9
Solid and liquid phases of a substance are in equilibrium at the
Q.10
Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal boiling point, kcal/kmol Tb = normal boiling point, °K )
Q.11
Isentropic process means a constant __________ process.
Q.12
For an isothermal process, the internal energy of a gas
Q.13
If two gases have same reduced temperature and reduced pressure, then they will have the same
Q.14
At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure.
Q.15
Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
Q.16
At absolute zero temperature, all substances have the same
Q.17
A refrigerator works on the principle of __________ law of thermodynamics.
Q.18
The value of Cp & Cv respectively for monoatomic gases in Kcal/kg Mole . °K are
Q.19
As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is
Q.20
Gibbs phase rule finds application, when heat transfer occurs by
Q.21
A gas can be liquified by pressure alone only, when its temperature is __________ its critical temperature.
Q.22
In case of a close thermodynamic system, there is __________ across the boundaries.
Q.23
The thermodynamic law, PVy = constant, is not applicable in case of
Q.24
If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ⇋ C₃H₈(g) will be __________ Kcal.
Q.25
Pick out the wrong statement.
Q.26
Gibbs-Duhem equation
Q.27
Pick out the correct statement.
Q.28
Pick out the wrong statement.
Q.29
Which of the following is Virial equation of state?
Q.30
Which law of the thermodynamics provids basis for measuring the thermodynamic property?
Q.31
There is a change in __________ during the phase transition.
Q.32
Clausius - Clayperon equation is applicable to __________ equilibrium processes.
Q.33
For an ideal gas, the enthalpy
Q.34
dW and dq are not the exact differential, because q and W are
Q.35
Free energy
Q.36
Entropy change of the reaction, H₂O(liquid) H₂O(gas), is termed as the enthalpy of
Q.37
Specific __________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.).
Q.38
The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.
Q.39
The expression, nCv(T₂ - T₁), is for the __________ of an ideal gas.
Q.40
The unity of Planck's constant 'h' in the equation, E = hv is
Q.41
For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would
Q.42
Entropy change in case of reversible adiabatic process is
Q.43
In a homogeneous solution, the activity co-efficient of a component depends upon the
Q.44
The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is
Q.45
The internal energy of an incompressible fluid depends upon its
Q.46
Refrigerants commonly used for domestic refrigerators are
Q.47
Which of the following is true for Virial equation of state?
Q.48
A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of
Q.49
For a constant volume process
Q.50
Pick out the correct statement.
0 h : 0 m : 1 s