What is the change of entropy in irreversible adiabatic change?

The change in entropy in.a reversible adiabatic process is —

What will be the change in entropy in an irreversible cyclic process ?

Give reasons: (i) The change in entropy of a system in a cyclic process is zero. (ii) The change in entropy of a system is a reversible adiabatic process is zero.

This question has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement-I : Entropy change in reversible adiabatic expansion of an ideal is zero. Statement-II : The increase in entropy due to volume increase just compensate the decrease in entropy due to fall in temperature.

What is physical adsorption? What is change of entropy in the process adsorption.

The change in entropy (dS) is defined as-

What is called changing food?

What is the rate of change of velocity called?

Give the definition of isothermal and adiabatic change.

What are meant by the terms change of entropy (DeltaS) and change in free energy (DeltaG) of a system. Write down the mathematical relation between them. At 0^(@)C , liqiud water and ice remain in equilibrium. If 1 g of liquid water under equilibrium condition is converted to ice, explain with reason whether the process is endothermic or exothermic .