Q.1.
The degree of saturation is the ratio of
Q.2.
When humidity ratio of air          air is said to be dehumidified.
Q.3.
The total entropy of a mixture of gases is the          of the partial entropies.
Q.4.
The expression which represents the pressure exerted by a gas is
Q.5.
The slope of sublimation curve is          the slope of the vaporization curve at triple point.
Q.6.
An application requires R-at −140°C. The triple-point temperature is −157°C. Find the pressure of the saturated vapour at the required condition.
Q.7.
At the triple point, l(sublimation) = l(vaporization) – l(fusion).
Q.8.
Water          on melting and has the fusion curve with a          slope.
Q.9.
The properties of liquid            with pressure.
Q.10.
When does a vapour become superheated?
Q.11.
The slopes of sublimation and vaporization curves for all substances are
Q.12.
The Clausius-Clapeyron equation is given by
Q.13.
For proper utilization of exergy, it is desirable to make first law efficiency           and the source and use temperatures should
Q.14.
A pure substance which exists in a single phase has          independent variables.
Q.15.
If a relation exists among variables x,y,z then z may be expressed as a function of x and y as, dz=Mdx+Ndy .
Q.16.
If work is involved, Amin=          and if heat is involved, Amin=
Q.17.
If solar energy Qr is available at a reservoir storage temperature of Tr and if quantity of heat Qa is transferred by the solar collector at temperature Ta, then which of the following is true?
Q.18.
1 mole of cyclohexane (z = 1.is filled in a container at 27oC and 4 atm, what is the volume of container?
Q.19.
With the concept of exergy available, which of the following is possible?
Q.20.
Which of the following is true about compressibility of real gases?
Q.21.
The first law efficiency is defined as the ratio of the output energy to the input energy.
Q.22.
The following also gave two-constant equations of state.
Q.23.
The rate at which entropy is transferred out must          the rate at which entropy enters the control volume.
Q.24.
The temperature of feedwater leaving a heater is          the saturation temperature at steam extraction pressure.
Q.25.
The rate of entropy increase of the control volume          or          the net rate of entropy transfer to it.
Q.26.
How many types of feedwater heaters are present?
Q.27.
A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Condenser atkPa. Assuming ideal operation and processes, what is the thermal efficiency of this cycle?
Q.28.
Any thermodynamic process is accompanied by entropy generation.