Fugacity and pressure are numerically equal, when the gas is

Which of the following has the minimum value of COP for a given refrigeration effect?

In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is

Which of the following behaves most closely like an ideal gas ?

What happens in a reversible adiabatic compression ?

Which of the following is not an intensive property ?

Which of the following has the minimum value of COP for a given refrigeration effect?

Refrigerants commonly used for domestic refrigerators are

__________ decreases during adiabatic throttling of a perfect gas.

Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T) is

In the equation, PVⁿ = constant, if the value of n = ± ∞, then it represents a reversible __________ process.

For multicomponent multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.

The work done in isothermal compression compared to that in adiabatic compression will be

Ideal gas law is applicable at

Sublimation temperature of dry ice (solid CO₂) is __________ °C.

Pick out the wrong statement.

Solid and liquid phases of a substance are in equilibrium at the

Absolute zero temperature signifies the

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 = C_p/C_v = 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. C_p/C_v), 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 )