For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is_________________?
A. x
B. x + 1
C. x + 2
D. x + 3
Thermodynamics for Chemical
Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the__________________?
Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the__________________?
A. Two temperatures only
B. Pressure of working fluid
C. Mass of the working fluid
D. Mass and pressure both of the working fluid
A gas performs the maximum work, when it expands___________________?
A gas performs the maximum work, when it expands___________________?
A. Non-uniformly
B. Adiabatically
C. Isobarically
D. Isothermally
Absolute zero temperature signifies the ____________________?
Absolute zero temperature signifies the ____________________?
A. Minimum temperature attainable
B. Temperature of the heat reservoir to which a Carnot engine rejects all the heat that is taken in
C. Temperature of the heat reservoir to which a Carnot engine rejects no heat
D. None of these
Normal temperature and pressure (N.T.P.) corresponds to ___________________?
Normal temperature and pressure (N.T.P.) corresponds to ___________________?
A. 0°C and 760 mm Hg
B. 15°C and 760 mm Hg
C. 20°C and 760 mm Hg
D. 0°C and 1 kgf/cm2
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?
A. √(2KT/m)
B. √(3KT/m)
C. √(6KT/m)
D. 3KT/m
Internal energy of an ideal gas___________________?
Internal energy of an ideal gas___________________?
A. Increases with increase in pressure
B. Decreases with increase in temperature
C. Is independent of temperature
D. None of these
Solid and liquid phases of a substance are in equilibrium at the____________________?
Solid and liquid phases of a substance are in equilibrium at the____________________?
A. Critical temperature
B. Melting point
C. Freezing point
D. Both B. and C
For an isothermal reversible compression of an ideal gas_______________?
For an isothermal reversible compression of an ideal gas_______________?
A. Only ΔE = 0
B. Only ΔH =0
C. ΔE = ΔH = 0
D. dQ = dE
The minimum number of phases that can exist in a system is________________?
The minimum number of phases that can exist in a system is________________?
A. 0
B. 1
C. 2
D. 3