How does the temperature of the samples change? Which way does the energy
flow?

If the samples are on the same planet and touching, then the hot one cools off and the cold one warms up. Energy flows from the hot one to the cold one until their temperatures become equal somewhere in the middle.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

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