B. Answer the following.
1. Under what condition does heat energy flow from one object to the other?
2. Differentiate between inflammable and nonflammable substances.
3. Describe the Fahrenheit scale.
4. Electricity gives us heat in many ways. Explain with the help of examples.
5. At what temperature, is the reading on the Celsius scale twice that on the Fahrenheit scale?
Answers
Answer:
1. Without an external agent doing work, heat will always flow from a hotter to a cooler object. Two objects of different temperature always interact
2. Differentiate between inflammable and nonflammable substances.
3. The Fahrenheit scale is now usually defined by two fixed points with a 180 °F separation: the temperature at which pure water ice freezes is defined as 32 °F and the boiling point of water is defined to be 212 °F, both at sea level and under standard atmospheric pressure.
4. A huge amount of heat energy is stored in a bolt of lightning, which can strike and start a fire or cause an electrical outage. Heat energy is contained inside of a hot piece of pizza - if it doesn't cool down, that heat energy has the potential to hurt the roof of a person's mouth
5. 160∘C.
Explanation:
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