Fractional distillation
heated crude oil enters a tall fractionating column , which is hot at the bottom and gets cooler towards the top. vapours from the oil rise through the column. vapours condense when they become cool enough.
Answer:
Perceptual set
Explanation:
A perceptual set has to do with how an individual is predisposed to perceive things in a unique way. Sometimes when an object or circumstance is presented to several people, they most likely only notice certain attributes of the object or circumstance while ignoring some other attributes, this most times as a result of how they perceive things. A perceptual set can also be referred to as how a person interprets certain things based on the person's previous experiences. In addition, in the face of new information, one's culture, expectations, experiences can implicate one's ability to see certain things while ignoring others.
Answer:
c) patients recline and talk about whatever comes to mind
Explanation:
the answer is: The neutral stimulus causes no response.
Without being paired by any situation, neutral stimulus would not mean anything to the subjects. Because of this , the subjects would normally just ignore the neutral stimulus every time they face it.
But, when the neutral stimulus is paired with a certain situation (such as ringing a bell before giving foods to dogs), the dogs will associate the neutral stimulus with the positive reinforcement. To the point where the neutral stimulus transformed into a conditioned stimulus, which make the dogs'mouth to start watering every time they hear the bell.
