Q.1
Entropy change depends on
Q.2
Coke is produced
Q.3
When a gas is heated at constant pressure
Q.4
One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.
Q.5
For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be
Q.6
First law of thermodynamics furnishes the relationship between
Q.7
The measurement of a thermodynamic property known as temperature is based on
Q.8
Measurement of temperature is based on
Q.9
When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called
Q.10
All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
Q.11
The basis for measuring thermodynamic property of temperature is given by
Q.12
The absolute zero temperature is taken as
Q.13
Which of the following statement is wrong?
Q.14
A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as
Q.15
The process is adiabatic, if the value of n in the equation pvn = C, is
Q.16
The heat and mechanical energies are mutually convertible. This statement was established by
Q.17
Mond gas is obtained by
Q.18
Producer gas is obtained by
Q.19
In open cycle gas turbine plants
Q.20
The atomic mass of sulphur is
Q.21
Kelvin-Planck’s law deals with
Q.22
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)
Q.23
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is
Q.24
The condition of perfect vacuum, i.e., absolute zero pressure can be attained at
Q.25
Work done in a free expansion process is
Q.26
Characteristic gas constant of a gas is equal to
Q.27
The variables which control the physical properties of a perfect gas are
Q.28
Work-done in a free expansion process is
Q.29
The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is
Q.30
Diesel cycle consists of __________ processes.
0 h : 0 m : 1 s