A) As a metal such as lead melts, what happens to the average kinetic energy of

ID: 928185 • Letter: A

Question

A) As a metal such as lead melts, what happens to the average kinetic energy of the atoms? 1) The average kinetic energy decreases. 2)The average kinetic energy increases. 3) The average kinetic energy does not change.

B) As a metal such as lead melts, what happens to the average distance between the atoms?

As a metal such as lead melts, what happens to the average distance between the atoms?

The average distance between the atoms increases. The average distance between the atoms decreases. The average distance between the atoms does not change.

Explanation / Answer

A ) answer : The average kinetic energy increases

reason : on increase in temperature atoms kinetic energy increases and they seperate from each other they convert into liquids

B ) answer : The average distance between the atoms increases

reason : in the melting process solid converts into liquids . so sepearation betweeen molecules or atoms takes place. because of increases in kinetic energy

so finally in the melting process kinetic energy and distance between atoms increases

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A) As a metal such as lead melts, what happens to the average kinetic energy of

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