Question

4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in a water bath and the temperature of the metal is raised to 100.0°C. Note: The specific heat capacity of copper is 385J/kg K and the latent heat of fusion is 2.07x105J/kg. a. How much heat was required to raise the temperature of the copper?

Answer 1

We can easily find the heat required to raise the temperature of metal by the definition of specific heat. As specific heat is the heat required to raise the unit temperature of unit mass. Similarly in 2nd part the heat released (*released heat is represented by -ve sign) by the copper will be taken by liquid and its temperature will raise. Please find the attached solution and provide the feedback.

Probo M = 0.5 0.5kg To= 20°C cu 11 If = 100c Su= 385 g/kgu by = 2.098105 olla Heat Required to raise the Temp. of cel 8 m.S.AT Here cel Sa sp. Heat of AT - Raise in temp. so 0.5X385 % (100-20) = 15400 J. Q = 15: 4 ks mergo 0.5kg cu Ti= 20°c Scu= 3851 Solan Tep. - 30.9°C Seiq. = ? Tesa looc.

Heat Released by cu = Heat accepted by Liquid P-2 Mc. Sau (07)cel me se (BT), - 0.58385 x ( 30.9-100) 0.5X Sox 3019-209) > 266035 Se (10.9) Se = 244 0.68 / 9/kgik 2.44 Kg. 1 kq.k