A reversible isothermal process is a thermodynamic process where the temperature remains constant throughout and the process is carried out infinitely slowly.
• Isothermal: means that the temperature remains constant.
• Reversible: It occurs when the system is in equilibrium at all times, requiring an infinitesimally slow change and therefore infinitesimally slow process.
Pressure may change during an isothermal reversible process. Therefore, correct conditions are Infinitesimally slow process and constant temperature.
Consider the following compounds:
(i) CH₃CH₂Br
(ii) CH₃CH₂CH₂Br
(iii) CH₃CH₂CH₂CH₂Br
Arrange the compounds in the increasing order of their boiling points.