same
lower
higher
✅ The correct answer is option C.
Thermodynamics MCQs
A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is
30 kJ
54 kJ
84 kJ
114 kJ
✅ The correct answer is option B.
One kg of carbon produces __________ kg of carbon dioxide.
3-Jul
7-Mar
11-Mar
3-Nov
✅ The correct answer is option C.
Stirling cycle consists of
two constant volume and two isentropic processes
two constant volume and two isothermal processes
two constant pressure and two isothermal processes
one constant volume, o
✅ The correct answer is option B.
The atomic mass of nitrogen is __________ oxygen.
equal to
less than
more than
✅ The correct answer is option B.
In an isolated system, neither the heat and work nor the, mass of the working substance crosses the boundary of the system.
TRUE
FALSE
✅ The correct answer is option A.
The measurement of a thermodynamic property known as temperature is based on
Zeroth law of thermodynamics
First law of thermodynamics
Second law of thermodynamics
none of these
✅ The correct answer is option A.
The conditions of temperature and pressure at 0°C (273K) and 760 mm of Hg pressure are termed as __________ temperature and pressure.
normal
standard
✅ The correct answer is option B.
Liquid fuels consist of hydrocarbons.
TRUE
FALSE
✅ The correct answer is option A.
In S. I. units, the value of the universal gas constant is
8.314 J/kg mole-K
83.14 J/kgmole-K
831.4 J/kgmole-K
8314 J/kgmole-K
✅ The correct answer is option D.