Advertisements
Advertisements
Question
Give Kelvin a statement of the second law of thermodynamics.
Solution
Kelvin-Planck statement: It is impossible to take heat from a hotter reservoir and convert a cyclic process heat to a cooler reservoir.
APPEARS IN
RELATED QUESTIONS
When an object cools down, heat is withdrawn from it. Does the entropy of the object decrease in this process? If yes, is it a violation of the second law of thermodynamics stated in terms of increase in entropy?
The second law of thermodynamics deals with transfer of ______.
The second law of thermodynamics deals with the transfer of ______.
In any reversible isothermal expansion, the entropy of gas will ______.
The second law of thermodynamics states that ______.
When 1 kg of ice at 0°C melts to water at 0°C, the resulting change in its entropy, taking latent heat of ice to be 80 cal/°C is:
An ideal gas in a cylinder is separated by a piston in such a way that the entropy of one part is S1 and that of the other part is S2. Given that S1 > S2. If the piston is removed then the total entropy of the system will be ______.
An electron of stationary hydrogen atom jumps from 4th energy level to ground level. The velocity that the photon acquired as a result of electron transition will be ______. (h = Planck's constant, R = Rydberg's constant, m = mass of photon)
An alternating emf is applied to a series combination of an inductor and a resistor (R = 100 Ω ). If the impedance of the circuit is `100 sqrt2 Ω`, what is the phase difference between the emf and the current?
State the two forms of the second law of thermodynamics.
