Joule-Thomson co-efficient is defined as
Pick out the wrong statement.
Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
The standard Gibbs free energy change of a reaction depends on the equilibrium
During adiabatic expansion of gas
The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be
Reduced pressure of a gas is the ratio of its
For a reversible process involving only pressure-volume work
If atmospheric temperature and dew point are nearly equal, then the relative humidity is
In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when
A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.
Entropy of a substance remains constant during a/an __________ change.
Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.
Mollier chart is a __________ plot.
For organic compounds, group contribution method can be used for the estimation of
Specific __________ does not change during phase change at constant temperature and pressure.
Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio ofassuming air to be an ideal gas (Y = Cp/Cv = 7/and the process to be reversible, is
Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of
For a real gas, the chemical potential is given by
When dilute aqueous solutions of two salts are mixed, the process is associated with
In an ideal solution, the activity of a component equals its
The third law of thermodynamics states that the
When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is
Entropy change for an irreversible process taking system and surrounding together is
At absolute zero temperature, all substances have the same
Pick out the correct statement.
Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be __________ c.c.
In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process.
Entropy of an ideal gas depends upon its
Linde gas liquefaction process employs cooling
In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants )
Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the
An isolated system can exchange __________ with its surroundings.
Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is
Clayperon equation deals with the
Which is not a state function ?
Throttling process is a/an __________ process.
Isobaric process means a constant process.
Joule-Thomson experiment is
Out of the following refrigeration cycles, which one has maximum COP ?
Entropy is a measure of the __________ of a system.
A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is
Requisites of a reversible process is that the
Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work.
Mollier diagram is a plot of
Entropy change of mixing two liquid substances depends upon the
For an ideal liquid solution, which of the following is unity ?