spicymery spicymery

03-03-2020
Chemistry

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How much heat is released when a 20g block of lead cools from 150°C to 120°C

How much heat is released when a 20g block of lead cools from 150C to 120C class=

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kinyonethan1 kinyonethan1

03-03-2020

Answer:

96 Joules of heat released.

Explanation:

q=mc∆t

q=(20)(.16)(-30)

q=-96

Q negative means heat is released.

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