A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. If it is one of the substances found in following table, what is its likely identity? Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol (state) Specific Heat (Jig °C) Не (9) H20() helium 5.193 water 4.184 2.376 2.093 (at -10 °C) ethanol ice H20(s) water vapor 1.864 (6)0H 1.040 nitrogen N2(g) air 1.007 O9) Al(s) CO2(9) охудen 0.918 aluminum 0.897 carbon dioxide 0.853 Ar(g) Fe(s) Cu(s) argon 0.522 iron 0.449 copper 0.385 lead Pb(s) 0.130 gold Au(s) 0.129 silicon Si(s) 0.712 O Ar(g) Si(s)

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A piece of unknown substance weighs 44.7 g and
requires 2110J to increase its temperature from 23.2
°C to 89.6 °C. If it is one of the substances found in
following table, what is its likely identity?
Specific Heats of Common Substances at 25 °C and 1 bar
Substance
Symbol (state)
Specific Heat (Jig °C)
Не(9)
H2O()
helium
5.193
water
4.184
ethanol
2.376
H2O(s)
H2O(g)
N2(g)
ice
2.093 (at -10 °C)
water vapor
1.864
nitrogen
1.040
air
1.007
oxygen
O9)
0.918
aluminum
Al(s)
CO2(9)
Ar(g)
Fe(s)
0.897
carbon dioxide
0.853
argon
0.522
iron
0.449
соррer
Cu(s)
0.385
0.130
Pb(s)
Au(s)
lead
gold
0.129
silicon
Si(s)
0.712
Ar(g)
Si(s)
O Al(s)
Transcribed Image Text:A piece of unknown substance weighs 44.7 g and requires 2110J to increase its temperature from 23.2 °C to 89.6 °C. If it is one of the substances found in following table, what is its likely identity? Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol (state) Specific Heat (Jig °C) Не(9) H2O() helium 5.193 water 4.184 ethanol 2.376 H2O(s) H2O(g) N2(g) ice 2.093 (at -10 °C) water vapor 1.864 nitrogen 1.040 air 1.007 oxygen O9) 0.918 aluminum Al(s) CO2(9) Ar(g) Fe(s) 0.897 carbon dioxide 0.853 argon 0.522 iron 0.449 соррer Cu(s) 0.385 0.130 Pb(s) Au(s) lead gold 0.129 silicon Si(s) 0.712 Ar(g) Si(s) O Al(s)
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