You have 45 grams of ice at -15 oC that you want to convert into steam at 115 oC. Find ΣQ. Specific Heatsof Some Materials atAtmospheric PressureSubstance J/kg · °C cal/g °CAluminum9000.215Веryllium1 8200.436Cadmium2300.055CopperEthyl3870.092 42 4300.581alcoholGermanium3220.077Glass8370.200Gold1290.030 8Human3 4700.829tissueIce2 0900.500Iron4480.107Lead1280.030 5Mercury1380.033Silicon7030.168Silver2340.056Steam2 0100.480Tin2270.054 2Water4 1861.00Latent Heats of Fusion and VaporizationLatent Heatof FusionLatent Heatof VaporizationSubstanceMelting Point ("C)J/kg)cal/gBoiling Point (C)J/kg)2.09 x 102.01 x 102.13 x 108.54 X 10cal/gHelium-269.655.23 x 101.25-268.934.99NitrogenOxygenEthyl alcohol-209.972.55 X 106.09-195.8148.0-218.791.38 x 1043.30-182.9750.9-1141.04 x 1024.978204Water0.003.33 X 1079.7100.002.26 x 105403.81 X 102.45 X 103.26 x 108.70 x 10Sulfur1199.10444.6077.91 7502 450Lead327.35.85208Aluminum6603.97 x 10594.81.14 x 1072 720Silver960.808.82 x 10421.12 1932.33 x 10°5581 063.001 083Gold6.44 X 1015.42 6601.58 X 10377Соpper1.34 x 101 1875.06 X 101 21032.0

Given: Mass of ice m = 45 gm. = 0.045 kg. Initial temperature of ice Ti=-15 oC Final temperature…

Answered: You have 45 grams of ice at -15 oC…

Science

Physics

You have 45 grams of ice at -15 oC that you want to convert into steam at 115 oC. Find ΣQ.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 81PQ

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Concept explainers

Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.

Question

100%

You have 45 grams of ice at -15 ^oC that you want to convert into steam at 115 ^oC. Find ΣQ.

Specific Heats
of Some Materials at
Atmospheric Pressure
Substance J/kg · °C cal/g °C
Aluminum
900
0.215
Веryllium
1 820
0.436
Cadmium
230
0.055
Copper
Ethyl
387
0.092 4
2 430
0.581
alcohol
Germanium
322
0.077
Glass
837
0.200
Gold
129
0.030 8
Human
3 470
0.829
tissue
Ice
2 090
0.500
Iron
448
0.107
Lead
128
0.030 5
Mercury
138
0.033
Silicon
703
0.168
Silver
234
0.056
Steam
2 010
0.480
Tin
227
0.054 2
Water
4 186
1.00
Latent Heats of Fusion and Vaporization
Latent Heat
of Fusion
Latent Heat
of Vaporization
Substance
Melting Point ("C)
J/kg)
cal/g
Boiling Point (C)
J/kg)
2.09 x 10
2.01 x 10
2.13 x 10
8.54 X 10
cal/g
Helium
-269.65
5.23 x 10
1.25
-268.93
4.99
Nitrogen
Oxygen
Ethyl alcohol
-209.97
2.55 X 10
6.09
-195.81
48.0
-218.79
1.38 x 104
3.30
-182.97
50.9
-114
1.04 x 10
24.9
78
204
Water
0.00
3.33 X 10
79.7
100.00
2.26 x 10
540
3.81 X 10
2.45 X 10
3.26 x 10
8.70 x 10
Sulfur
119
9.10
444.60
77.9
1 750
2 450
Lead
327.3
5.85
208
Aluminum
660
3.97 x 105
94.8
1.14 x 107
2 720
Silver
960.80
8.82 x 104
21.1
2 193
2.33 x 10°
558
1 063.00
1 083
Gold
6.44 X 10
15.4
2 660
1.58 X 10
377
Соpper
1.34 x 10
1 187
5.06 X 10
1 210
32.0

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