Question

A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blacks are placed in water. One is a 50 gram piece of copper at 82°C. The other sample has a mass of 57 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. Determine the specific heat of the unknown second sample.

A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 82. The other sample has a mass of 57 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20'C. Determine the specific heat of the known second sample 1941 X Your response differs from the correct answer by more than 10%, Double check your calculations. Vkg.

Answer 1

Problem can be solve as below,

Mal = 1009 1 letos mw : 250g J Cal = 0.9 moc T = 20 c Cw² 4.186 Jamie Heat taken by Water - & Al Mco : 509 Toz Boc m=579 t = 100c Cco = 0.386 Sigric Heat other loose by Coppez R substance A (MA, Cart Mw. Coul Ata - Mro. Cpco ( 82-20) + m C. (100-20) (1000.9 +250 4.186) (10) - 50x0.386 (62) + 57.(180) c=2.23 - J gm°c - 2230 h C. 2230