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The amount of heat energy needed to raise the temperature of 1 kg of a substance through 1 K is called

Correct answer: A. specific heat

  • A. specific heat
  • B. heat capacity.
  • C. heat of fusion
  • D. heat of vapourisation

Explanation

A) Specific heat: This term (also known as specific heat capacity) is defined as the amount of heat energy required to raise the temperature of one unit of mass of a substance by one unit of temperature. In the question, "1 kg" is the unit of mass and "1 K" (Kelvin) is the unit change in temperature, which directly aligns with the definition of specific heat.

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About Thermal Equilibrium and Heat

Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.

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