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19-02-2017
Physics

contestada

The specific heat of iron is 0.11 cal(g°
c. a cafeteria fork made of iron has a mass of 20 grams. how much heat energy is needed to raise the temperature of this fork from 25°c to 75°c?

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DoctorCass DoctorCass

19-02-2017

Specific heat capacity= m c Δ t
= 20 * 0.11* (75-25)
= 20* 0.11* 50
= 110 calories.

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