Thermal Physics> heat

What is the Specific Heat of Copper?

Algote Devendhar , 11 Years ago

Grade 12th Pass

5 Answers

Raghuvaran varan Chandragiri

Last Activity: 11 Years ago

386.4 Jkg^-1k^-1

Approved

yours katarnak Suresh

Last Activity: 11 Years ago

Specific heats and molar heat capacities for various substances at 20 C

Substance	c in J/gm K	c in cal/gm K or Btu/lb F	Molar C J/mol K
Aluminum	0.900	0.215	24.3
Bismuth	0.123	0.0294	25.7
Copper	0.386	0.0923	24.5
Brass	0.380	0.092	...
Gold	0.126	0.0301	25.6
Lead	0.128	0.0305	26.4
Silver	0.233	0.0558	24.9
Tungsten	0.134	0.0321	24.8
Zinc	0.387	0.0925	25.2
Mercury	0.140	0.033	28.3
Alcohol(ethyl)	2.4	0.58	111
Water	4.186	1.00	75.2
Ice (-10 C)	2.05	0.49	36.9
Granite	.790	0.19	...
Glass	.84	0.20	...

Specific Heat

Why are the metallic molar specific heats so nearly the same?

Index

Tables

Reference
Tipler
Ch 19

HyperPhysics***** Thermodynamics

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The specific heat of common metals are indicated in the table below:

Metal	Specific Heat - c_p
Metal	(kJ/kg K)	(kcal/kg^oC)	(Btu/lb_m^oF)
Aluminum	0.91	0.22	0.22
Antimony	0.21	0.05	0.05
Barium	0.20	0.048	0.048
Beryllium	1.83	0.436	0.436
Bismuth	0.13	0.03	0.03
Cadmium	0.23	0.055	0.055
Calsium	0.63	0.15	0.15
Carbon Steel	0.49	0.12	0.12
Cast Iron	0.46	0.11	0.11
Cesium	0.24	0.057	0.057
Chromium	0.46	0.11	0.11
Cobalt	0.42	0.1	0.1
Copper	0.39	0.092	0.09
Gallium	0.37	0.088	0.088
Germanium	0.32	0.076	0.076
Gold	0.13	0.031	0.03
Hafnium	0.14	0.033	0.033
Indium	0.24	0.057	0.057
Iridium	0.13	0.031	0.31
Iron	0.45	0.108	0.11
Lanthanum	0.195	0.047	0.047
Lead	0.13	0.031	0.03
Lithium	3.57	0.85	0.85
Lutetium	0.15	0.036	0.036
Magnesium	1.05	0.243	0.25
Manganese	0.48	0.114	0.114
Mercury	0.14	0.033	0.03
Molybdenum	0.25	0.06	0.06
Nickel	0.44	0.104	0.10
Niobium (Columbium)	0.27	0.064	0.064
Osmium	0.13	0.031	0.031
Palladium	0.24	0.057	0.057
Platinum	0.13	0.032	0.03
Plutonium	0.13	0.032	0.032
Potassium	0.75	0.180	0.180
Rhenium	0.14	0.033	0.033
Rhodium	0.24	0.058	0.058
Rubidium	0.36	0.086	0.086
Ruthenium	0.24	0.057	0.057
Scandium	0.57	0.14	0.14
Selenium	0.32	0.077	0.077
Silicon	0.71	0.17	0.17
Silver	0.23	0.057	0.057
Sodium	1.21	0.29	0.29
Strontium	0.30	0.072	0.072
Tantalum	0.14	0.034	0.034
Thallium	0.13	0.03	0.03
Thorium	0.13	0.03	0.03
Tin	0.21	0.054	0.05
Titanium	0.54	0.125	0.13
Tungsten	0.13	0.032	0.032
Uranium	0.12	0.028	0.028
Vanadium	0.39	0.116	0.116
Yttrium	0.30	0.072	0.072
Zinc	0.39	0.093	0.09
Zirconium	0.27	0.06	0.06
Wrought Iron	0.50	0.12	0.12

1 J/(kg K) = 2.389x10^-4 kcal/(kg ^oC) = 2.389x10^-4 Btu/(lb_m ^oF)
1 kJ/(kg K) = 0.2389 kcal/(kg ^oC) = 0.2389 Btu/(lb_m ^oF)
1 Btu/(lb_m ^oF) = 4,186.8 J/ (kg K) = 1 kcal/(kg ^oC)
1 kcal/(kg ^oC) = 4,186.8 J/ (kg K) = 1 Btu/(lb_m ^oF)

Example - Heating Carbon Steel

2 kg of carbon steel is heated from 20 ^oC to 100 ^oC. Specific heat of carbon steel is 0.49 kJ/kg⁰C and the heat required can be calculated as

dQ = 2 (kg) 0.49 (kJ/kg⁰C) (100 (^oC) - 20 (^oC))

= 78.4 (kJ)

Approved