What is entropy and how is it related to the spontaneity of a process?

The sole criterion for the spontaneity of a process is

How does T DeltaS determine the spontaneity of process?

Define the term 'entropy'. How does TDeltaS determine the spontaneity of a process?

For a spontaneous process :-

The incorrect criterion for the spontaneity of a process is

Discuss the effect of temperature on the spontaneity of a process.

A contributions of both heat (enthalpy) and randomness(entropy) shall be considered to the overall spontaneity of process.When deciding about the spontaneity of a chemical reaction or other process, we define a quantity called the Gibb's energy change (DeltaG) . DeltaG=DeltaH-TDeltaS where, DeltaH =Enthalpy change, DeltaS =Entropy change , T=Temperature in kelvin. If DeltaGlt0 , Process is spontaneous , DeltaG=0 , Process is at equilibrium , DeltaGgt0 , Process is non-spontaneous. For the change H_2O(s),(273 K ,2 atm) to H_2O(l) ,(273 K, 2 atm), choose the correct option.

A contributions of both heat (enthalpy) and randomness(entropy) shall be considered to the overall spontaneity of process.When deciding about the spontaneity of a chemical reaction or other process, we define a quantity called the Gibb's energy change (DeltaG) . DeltaG=DeltaH-TDeltaS where, DeltaH =Enthalpy change, DeltaS =Entropy change , T=Temperature in kelvin. If DeltaGlt0 , Process is spontaneous , DeltaG=0 , Process is at equilibrium , DeltaGgt0 , Process is non-spontaneous. 5 mol of liquid water is compressed from 1 bar to 10 bar at constant temperature.Change is Gibb's energy (DeltaG) in Joule is:[Density of water = 1000 kg//m^3 ]

A contributions of both heat (enthalpy) and randomness(entropy) shall be considered to the overall spontaneity of process.When deciding about the spontaneity of a chemical reaction or other process, we define a quantity called the Gibb's energy change (DeltaG) . DeltaG=DeltaH-TDeltaS where, DeltaH =Enthalpy change, DeltaS =Entropy change , T=Temperature in kelvin. If DeltaGlt0 , Process is spontaneous , DeltaG=0 , Process is at equilibrium , DeltaGgt0 , Process is non-spontaneous. Quick lime (CaO) is produced by heating limestone (CaCO_3) to drive off CO_2 gas. CaCO_3(s)toCaO(s)+CO_2(g),DeltaH^@=180 KJ,DeltaS^@=150 J//K Assuming that variation of enthalpy change and entropy change with temperature to be negligible, choose the correct option :

What do you understand by the spontaneity of a process ? Discuss the spontaneity of a process in terms of entropy and free energy.