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?
A. 2.73
B. 28.3
C. 273
D. 283
Thermodynamics for Chemical
The second law of thermodynamics states that___________________?
The second law of thermodynamics states that___________________?
A. The energy change of a system undergoing any reversible process is zero
B. It is not possible to transfer heat from a lower temperature to a higher temperature
C. The total energy of system and surrounding remains the same
D. None of the above
In the equation, PVn = constant, if the value of n = 1, then it represents a reversible _____________ process?
In the equation, PVn = constant, if the value of n = 1, then it represents a reversible _____________ process?
A. Isothermal
B. Isobaric
C. Polytropic
D. Adiabatic
The absolute entropy for all crystalline substances at absolute zero temperature is ____________________?
The absolute entropy for all crystalline substances at absolute zero temperature is ____________________?
A. Zero
B. Negative
C. More than zero
D. Indeterminate
For spontaneous changes in an isolated system (S = entropy) ___________________?
For spontaneous changes in an isolated system (S = entropy) ___________________?
A. ds = 0
B. ds <0
C. ds > 0
D. ds = Constant
For an exothermic reaction ____________________?
For an exothermic reaction ____________________?
A. Only enthalpy change (ΔH) is negative
B. Only internal energy change (ΔE) is negative
C. Both ΔH and ΔE are negative
D. Enthalpy change is zero
Joule-Thomson effect i.e., a throttling process is a constant _____________ process?
Joule-Thomson effect i.e., a throttling process is a constant _____________ process?
A. Entropy
B. Temperature
C. Internal energy
D. Enthalpy
Which of the following is Virial equation of state ?
Which of the following is Virial equation of state ?
A. (p + a/V2)(V – b) = nRT
B. PV = nRT
C. PV = A + B/V + C/V2 + D/V3 + …
D. None of these
Specific ____________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.)?
Specific ____________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.)?
A. Entropy
B. Internal energy
C. Enthalpy
D. Gibbs free energy
At ____________ point, all the three phases (i.e. solid, liquid and gas) co-exist ?
At ____________ point, all the three phases (i.e. solid, liquid and gas) co-exist ?
A. Eutectic
B. Triple
C. Plait
D. Critical