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The specific heat of the human body calculated from the measured values of individual tissues is 2.98 kJ · kg−1 · °C−1. This is 17% lower than the earlier wider used one based on non measured values of 3.47 kJ · kg−1· °C−1. The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution ...
The molar gas constant (also known as the gas constant, universal gas constant, or ideal gas constant) is denoted by the symbol R or R. It is the molar equivalent to the Boltzmann constant, expressed in units of energy per temperature increment per amount of substance, rather than energy per temperature increment per particle.
CRC. As quoted in an online version of: David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition. CRC Press. Boca Raton, Florida, 2003; Section 4, Properties of the Elements and Inorganic Compounds; Heat Capacity of the Elements at 25 °C.
Molar heat capacity of most elements at 25 °C is in the range between 2.8 R and 3.4 R: Plot as a function of atomic number with a y range from 22.5 to 30 J/mol K.. The Dulong–Petit law, a thermodynamic law proposed by French physicists Pierre Louis Dulong and Alexis Thérèse Petit, states that the classical expression for the molar specific heat capacity of certain chemical elements is ...
R is the gas constant (J⋅K −1 ⋅mol −1) N is the number of molecules in the body. (dimensionless) k B is the Boltzmann constant (J⋅K −1) Again, SI units shown for example. Read more about the quantities of dimension one [28] at BIPM In the Ideal gas article, dimensionless heat capacity is expressed as ^
In chemistry and thermodynamics, the standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements in their reference state, with all substances in their standard states. The standard pressure value p⦵ = 105 Pa (= 100 kPa = 1 ...
where R is the ideal gas constant, about 8.31446 J⋅K −1 ⋅mol −1 (which is the product of the Boltzmann constant k B and the Avogadro constant). And, indeed, the experimental values of c V ,m for the noble gases helium , neon , argon , krypton , and xenon (at 1 atm and 25 °C) are all 12.5 J⋅K −1 ⋅mol −1 , which is 3 / 2 ...
J/(mol·K) Solid properties Std enthalpy change of formation, Δ f H o solid: −411.12 kJ/mol [2] Standard molar entropy, S o solid: 72 J/(mol·K) Heat capacity, c p: 50 J/(mol·K) ; 0.853 J/(g·k) [2] Liquid properties Std enthalpy change of formation, Δ f H o liquid: −385.92 kJ/mol Standard molar entropy, S o liquid: 95.06 J/(mol·K ...