An object is heated for 200 minutes. During that time it goes from solid to liqu

Question

An object is heated for 200 minutes. During that time it goes from solid to liquid. Use the graph below to answer the following questions Temperature vs Tl ime 200 6 175 150 100 75+ 50 E 25 50 100 150 200 Time (min) a.) What is the name of the phase change that occured? Meltin b.) At what temperature did the phase change occur? 35 c.) How long did the phase change occur? 120 min d.) During the phase change is heat leaving the object, entering the object, or neither? Entering e.) How long was the object completely liquid? min

Explanation / Answer

(b) The phase change occurred at 150 degree celsius. The sudden spike in temperature is a sign of phase change.

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