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.
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: