Question

A piece of unknown substance weighs 57.2 g and requires 3210 ) to increase its temperature from 22.6°C to 89.2°C. (a) What is the specific heat (in J/g.°C) of the substance? 493 /9-°C (6) If it is one of the substances found in the table below, what is its likely identity? Specific Heats of Common Substances at 25°C and 1 bar Substance Symbol (state) Specific Heat (1/g.c) gold Au(s) 0.129 copper Cu(s) 0.384 iron Fe(s) 0.449 argon Arg) 0.521 silicon Si(s) 0.712 carbon dioxide 0.843 CO2(9) 0,0) oxygen 0.919 nitrogen 1.039 N (9) H2000 water 4.1801 helium He(g) 5.196

Answer 1

W. ANSWER @ Heat Climge (SS) 2 mx Swat mo man so specific heat 3210 = 17.280 SX (89.2-22. 6 st → Temperature change. on sz 3210 57.2 X 66.6 ore Sz 0.8426 Om Sz 0.843 Jlgºe A specifie heat of Substance =0.843 J/goo. HO adeudity of Substance - Substance in a log (carbon dioxile)

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