Consider the statement below.
“When nitrogen is liquefied, heat is released.”
Is this statement true or false?
A) It is false because nitrogen absorbs heat when it is liq
uefied.
B) It is false because nitrogen cannot absorb enough heat to liquefy.
C) It is true because heat is released when a gas changes to a liquid.
D) It is true because heat is released when a liquid changes to a gas.



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