Chemical constant of diatomic gases769 Chemical constant of electron767 Chemical constant of hydrogen769 Chemical constant of monatomic substances478 Chemical constant, calculation of477 Chemical constant, expression for477 Chemical equilibriasee "Equilibriumchemical" Chemical reactions, heterogeneous282360805 Chemical reactions, homogeneous779 Chemical reactions, laws of783 Chemical reactions, laws of, in terms of partition function798 Chemical thermometers5 Chowdri117 Chromosphere695 Clapeyron325355462 Clapeyron's equations325355 Clark72798739 Clark and Katz98 Clark cell e.m.f. of346 Claude492516517 Claude and Heylandt516 Claude's liquefier516 Clausius119154158304307319402415416422462470769858 Clausius — Clapeyron's relation353 Clausius — Clapeyron's relation, Clapeyron's deduction of355 Clausius — Clapeyron's relation, deduction from thermodynamics355 Clement599 Clement and Desormes92 Clement and Desormes' apparatus92 Clerk, Sir Dugald260 Clinical thermometer5 Clusius478528741769918 Coblentz652679 Coefficient of expansion546559see Coefficient of expansion, effect of pressure on566 Coefficient of expansion, of crystals in different directions561 Coefficient of expansion, of crystals, by X-ray method556 Coefficient of performance493—496 Coefficient of slip, Maxwell's196 Cohen145 Colardeau436439 Colding110 Coleman478 Collin's expansion engine524 Collin's liquefier522 Collins521522 Collision of two elastic bodies845 Collision, method of, deduction of Maxwell's law from847 Combination of several equilibria797 Combination with repetition, proof of the formula of876 Combustion enginesee "Engine" Components of a system366 Compound engine228 Compton, A.H.624865 Compton, K.T.141144 Conditions of natural change341 Conditions of natural change in adiabatic process342 Conditions of natural change in isothermal process342 Conditions of natural change in isothermal-isobaric process347 Conditions of natural change in isothermal-isochoric process343 Conduction of heat568 Conduction of heat in three dimensions595 Conduction of heat, investigated from kinetic theory173 Conductivity (electrical)582 Conductivity (thermal) of crystals601 Conductivity (thermal) of crystals, absolute602 Conductivity (thermal) of crystals, Eucken's law for603 Conductivity (thermal) of crystals, of different substances610 Conductivity (thermal) of crystals, of different substances, age of the Earth from614 Conductivity (thermal) of crystals, of glass599 Conductivity (thermal) of gases606 Conductivity (thermal) of gases at low pressures214611 Conductivity (thermal) of gases from kinetic theory175 Conductivity (thermal) of gases, determination of606 Conductivity (thermal) of gases, relation between viscosity and174611 Conductivity (thermal) of gases, variation of, with pressure611 Conductivity (thermal) of gases, variation of, with temperature611 Conductivity (thermal) of liquids, measurement of603 Conductivity (thermal) of metals, at very low temperatures574 Conductivity (thermal) of metals, by a combination of the steady and variable heat flow (Forbes' method)579 Conductivity (thermal) of metals, by guard-ring method571 Conductivity (thermal) of metals, determination of570 Conductivity (thermal) of metals, from aperiodic variable heating590 Conductivity (thermal) of metals, from calorimetric measurement570572 Conductivity (thermal) of metals, from periodic flow of heat585 Conductivity (thermal) of metals, from temperature measurement575 Conductivity (thermal) of metals, from the electrical energy spent in a body582 Conductivity (thermal) of metals, Sommerfeld's theory of594 Conductivity (thermal) of metals, theories of593 Conductivity (thermal) of poorly conducting solids596 Conductivity (thermal) of poorly conducting solids, measurement of596 Conductivity (thermal) of poorly conducting solids, measurement of, by cylindrical shell method598 Conductivity (thermal) of poorly conducting solids, measurement of, by disc method600 Conductivity (thermal) of poorly conducting solids, measurement of, by spherical shell method596 Conductivity (thermal), by a periodic variable heating585 Conductivity (thermal), definition of568 Conductivity (thermal), from periodic flow of heat585 Conductivity (thermal), of Earth's crust612 Conductivity (thermal), relation between electrical conductivity and582591 Conductivity (thermal), table of values610 Conductivity of rubber599 Conductivity, practical applications of611 Conductivity, thermometric576 Constant flow method, for gases8589 Constant flow method, for liquids67 Constant volume hydrogen thermometer8 Constant, Boltzmann129389 Constant, gas818 Constant, Planck's646671 Constant, Stefan's650—654 Constant, Wien's660662 Constants, of kinetic theory223 Constants, physical, list of939 Continuity of spectrum619 Continuity of states401 Convection568 Cook104172 Cooling, by adiabatic demagnetisation530 Cooling, by adiabatic expansion491 Cooling, due to adsorption525 Cooling, due to Joule — Thomson effect500 Cooling, Newton's law of51 Cooling, regenerative512 Copeland795796797 Corbino75 Corner172 Corona695 Corona graph, Lyor's696 Correction, of gas scale10—16 Correction, of gas thermometer from Joule — Thomson effect509 Correction, to be applied to gas thermometer10 Correction, to mercury thermometer3 Corresponding states, law of429 Cosine law200 Costa141147 Cottrell461 Critical coefficients413—415 Critical constants401 Critical constants of water436 Critical constants, deduction of, from Van der Waals' equation413 Critical constants, experimental determination of434 Critical constants, table of438 Critical data438 Critical density436 Critical isothermal410 Critical point438 Critical point, discovery of497 Critical point, matter near the438 Critical pressure410435 Critical temperature410435