Related Questions

The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process.
A Isobaric
B Isothermal
C Adiabatic
D None of these
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that
A Carnot cycle can't work with saturated steam
B Heat is supplied to water at temperature below the maximum temperature of the cycle
C A Rankine cycle receives heat at two places
D Rankine cycle is hypothetical
If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly
A Temperature
B Enthalpy
C Internal energy
D Entropy
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as
A Enthalpy
B Internal energy
C Entropy
D External energy
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
The area under the temperature-entropy curve (T - s curve) of any thermodynamic process represents
A Heat absorbed
B Heat rejected
C Either (A) or (B)
D None of these
The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents
A Heat absorbed
B Heat rejected
C Either heat absorbed or heat rejected
D None of these
Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be
A Same
B Doubled
C Halved
D One fourth of its original value
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
D None of these

Next steps