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A clinical thermometer has a kink near the bulb.

Answer the following questions:

1. Define heat.
2. What is temperature?
3. Define specific heat capacity of a substance.
4. What is the mathematical relation between joule and calorie?
5. Define one calorie of heat.
6. What are the lower and upper fixed points in the Kelvin scale?
7. What is meant by the anomalous expansion of water?
8. What does it mean that the specific heat capacity of water is 4200 J/kg°C?



Answer :

GinnyAnswer

Final answer:

Heat capacity is the heat required to raise the temperature of a substance, while specific heat is the heat required to raise the temperature of a unit mass of the substance. Water has a higher specific heat capacity compared to lead.


Explanation:

Heat capacity refers to the heat required to raise the temperature of the mass of a substance by one degree, while specific heat refers to the heat required to raise the temperature of 1 gram of the substance by one degree. Heat capacity is an extensive property, while specific heat is an intensive property.

  1. Cwater = 4.18 kJ/kg°C = 1 cal/g°C
  2. Clead = 0.128 J/g°C = 0.0306 cal/g°C

Learn more about Heat Capacity and Specific Heat here:

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