Question

Energy Chemistry Guided Practice Date: Group: Name: Energy Answer the questions below. the stove, A student is cooking macaroni and cheese for dinner. The student places a pot on boils water in the pot, places noodles in the boiling water, and watches the sink in the pot. Explain the types of heat transfer that are occurring as the noodles. 1. student cooks the A young child opens the refrigerator door and stands there for several minutes looking for something to eat. The child's parent tells the child to shut the refrigerator door because the child is letting the cold air out. What is a more exact explanation of what is occurring with the air when the refrigerator door is open? 2. To measure the amount of food energy in a chip, a student burns the chip under a container of water. The student measures the temperature change of the water. Using calorimetry, explain how the student can use the information of the temperature change to determine the heat given off by the burning chip 3.

Answer 1

Heat transfer is very important aspect eg cooking process Heating food destroys potentially harmful bateria and other microorganisns, which makes food sate to eat and easier to digest when food or liquids become hot,their molecules absorb energy begin librating rapidley and start to founce of f of each other As they couide heat energy is produced and transfed,which warms and cooks our food. Types of heat transfer unred or invovled in cooking noodles is- i) Conduction ii) Convection -Conduction is the process of heat being transfered between objects through direct contant.In cooking noodles,the burner on stove will conduct heat energy to the bottom of a pan sitting on top of it From there,the pan conducts heat to its contents -Convection combiner conduction heat transfer and transfer and circulation to force mole culer in the air to more from warmer arear to cooler over. Eg in cooking noodles is water coming to ball and circulating the pot.

Answer 2

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Answer 3

Energy Chemistry Guided Practice Date: Group: Name: Energy Answer the questions below. the stove, A student...

Answer 4

A young child opens the refrigerator door and stands there for several minutes, looking for something to eat. The child’s parent tells the child to shut the refrigerator door because the child is letting the cold air out. What is a more exact explanation of what is occurring with the air when the refrigerator door is open?

Answer 5

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