Second Law of Thermodynamics

What is the entropy change (in ${\mathrm{JK}}^{-1}{\mathrm{mol}}^{-1}$ ) when one mole of ice is converted into water at  $0°\mathrm{C}$? (The enthalpy change for the conversion of ice to liquid water  $6.0\hspace{0.17em}\mathrm{kJ}\hspace{0.17em}{\mathrm{mol}}^{-1}\mathrm{\hspace{0.17em}}\mathrm{at}\mathrm{\hspace{0.17em}}0°\mathrm{C}$)

PMM2 is the machine which violates-

For an increase in the entropy define ____ of nature.

Entropy is the third law of thermodynamics.

Define the entropy.

Which of the following option are correct for the second law of thermodynamics?

What is the hypothetical example of the Kelvin – Planck Statement?

 Kelvin Planck Statement deals with conversion of work into _____, conservation of work, conservation of heat, and conversion of heat into work.

Kelvin Planck's law deal with

Efficiency of a engine always less than unity.

An ideal gas heat engine operates in Carnot cycle between $227 °\mathrm{C}$ and $127 °\mathrm{C}$. It absorbs $6\times 10^4$ cal of heat at high temperature. Amount of heat converted to work is:

Heat cannot by itself flow from a body at lower temperature to a body at higher temperature” is a statement or consequence of

State Clausius statement of second law of thermodynamics.

State Kelvin-Planck statement of the second law of thermodynamics

Write the statement of second law of thermodynamics

Graphs below show the entropy versus energy $U$ of two systems $1$ and $2$ at constant volume. The initial energies of the systems are indicated by $U_{1, i}$ and $U_{2, i} ,$ respectively. Graphs are drawn to the same scale. The systems are then brought into thermal contact with each other. Assume that, at all times the combined energy of the two systems remains constant. Choose the most appropriate option indicating the energies of the two systems and the total entropy after they achieve the equilibrium.

Clausius's statement is a part of

A refrigerator operates on:

What do you mean by Clausius's statement?

Heat engine is a device in which a system undergoes a _____ process resulting in conversion of heat into work. (cyclic/non-cyclic)