Question

A piece of zinc at a temperature of 20 degree celcius weighing 65.38 g is dropped into 180 g of boiling water. The specific heat capacity of zinc is 0.4 joule per gram per degree celcius and that of water is 4.2 joule per gram per degree celcius . what is the final common temperature reached by both the zinc and water?

Answer 1

Answer:

⇒ Tf = 97.3 °C

Explanation:

Let final common temperature isTf  

Heat gained by Zinc piece =Heat lost by water

0.4 (Tf – 20) × 65.38 = 4.2 (100 –Tf) × 180

⇒ Tf = 97.3 °C

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