changes of state. Flashcards

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1
Q

is a change of state reversible?

A

it is.

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2
Q

what part is a physical change?

A

alters the internal energy but not the temp or mass.

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3
Q

what happens when energy is added to a system?

A

temperature increases.

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4
Q

at melting or boiling point the energy that is being added causes what?

A

substance to change state not temperature.

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