Answer : The correct option is, (D) Endothermic
Explanation :
Adiabatic : It is a process in which a heat is constant. That means no heat is lost or gained by the system.
Isothermic : It is a process in which a temperature is constant.
Exothermic : It is a process in which heat released from system to surrounding. In this process, surrounding temperature increases and system temperature decreases.
Endothermic : It is a process in which heat required from the surrounding. In this process, surrounding temperature decreases and system temperature increases.
When the temperature of water increases from room temperature to 90ºC the process of heating the water is endothermic.
Hence, the correct option is, (D) Endothermic
