# physical science

A sample of silver at 20.0 °C is heated to 100 °C when 1000 cal is added. What is the mass of the silver? (csilver = 0.056 cal/deg-gm)

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1. The temperature change is 80 C.
That is called "delta T"

Use this formula:

Q = M*C*(delta T)
Q is the added heat energy.

M = Q/[C*(delta T)]
= 1000 Cal/[0.056 Cal/g C*80 C]
= ___ gm

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