Once a spontaneous process or reaction begins, it will continue to proceed on its own. this will result in a lower energy state and the process occurs naturally. a. an example of a spontaneous process is an ice cube melting. the ice cube is removed from the freezer and absorbs energy from the surroundings. the process then continues on its own. b. a nonspontaneous process or reaction requires a continual input of energy for the process to occur. this results in a higher energy state, and therefore, the process does not occur naturally without a constant input of energy. c. an example of a nonspontaneous process is a plant growing. in order for a plant to grow, a continual input of energy is required as light from the sun. without sunlight, a plant would die, as the reaction cannot continue to proceed on its own. d. identify the reaction type in the example of logs burning in a campfire.