What is the relationship between the internal energy of a substance and its state of matter? A) As a gas loses internal energy it becomes a plasma. B) Closer packed atoms generally have more internal energy. C) As the internal energy decreases a substance will spread further apart. D) As the internal energy increases a substance would go from solid to a liquid.

Question

Romeo Harmon

Physics

9 June, 07:27

What is the relationship between the internal energy of a substance and its state of matter? A) As a gas loses internal energy it becomes a plasma. B) Closer packed atoms generally have more internal energy. C) As the internal energy decreases a substance will spread further apart. D) As the internal energy increases a substance would go from solid to a liquid.

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Krista Wilkerson · Answer 1

D) As the internal energy increases a substance would go from solid to a liquid.

Diya · Answer 2

Temperature is used as a measure for heat in an object by measuring the amount of kinetic energy in the molecules that make up the object. A cold object will have molecules which move very little. When heat is supplied to a cold object, the energy of the molecules in the object increases. This is because heat is a form of energy that can be transferred from the heat source to the molecules, and it can also change its form from heat to movement. The molecules that have gained extra energy will have a higher tendency to move more than the molecules that have not gained the extra energy. Energy of motion is called kinetic energy. When the molecules move or vibrate more, they have a higher kinetic energy, and this is recorded as an increase in temperature.