Entropy is a measure of randomess of system. When a liquid is converted to the vapour state entropy
Channel: Doubtnut
Date: 29/03/2020

Entropy is a measure of randomess of system. When a liquid is converted to the vapour state entropy of the system increases. Entropy in the phase transformation is calculated using `Delta S = (Delta H)/(T)` but in reversible adiabatic process `Delta`S will be zero. The rise in temperature in isobaric or isochoric process increases the randomness of system, which is given by `Delta S = \"2.303 n C log\"((T_(2))/(T_(1)))` `C = C_(P) or C_(V)` The change in entropy when 1 mole `O_(2)` gas expands isothermally and reversibly from an initial volume 1 litre to a final volume 100 litre at `27^(@)C`