. On the Thermal Conductivities of Single and Mixed Solids and Liquids and their Variation with Temperature . CO xO COxO ^ xor~~i r~-{ r—\ • • • •ssB^o in9do[S oan^jodniQ^ O CO ^ xp 9 op xb ^ xb i—! CO HxO CD xO * xb Hf) xb CiOOOJO Ci IN* * • • • • xO -^ xo O xO oCO cp CO xb ^p xb » 0s ^ Oi in. o xb cb CM ^ CM Gi 00 IN- Cp xp Cp . H CO CM *CM -^ CM IN. xO COrH rH CM • O ^t CM CM ^H CM Oi oo JN» -^ 00 CM o cb CM CM ^ CM o OD o PQ crOOOOSH HN ^ H O HO rH CD In. CO CMO xO CM CO r~\ Cl> rH I CO Oi O CM Ci O 00 CM • • • M O H j xO CD COH CO Cp r-\ 6~i r~\ ■+3 r—H bo •rH 1 IN- CO xO H O CMo • • •
. On the Thermal Conductivities of Single and Mixed Solids and Liquids and their Variation with Temperature . CO xO COxO ^ xor~~i r~-{ r—\ • • • •ssB^o in9do[S oan^jodniQ^ O CO ^ xp 9 op xb ^ xb i—! CO HxO CD xO * xb Hf) xb CiOOOJO Ci IN* * • • • • xO -^ xo O xO oCO cp CO xb ^p xb » 0s ^ Oi in. o xb cb CM ^ CM Gi 00 IN- Cp xp Cp . H CO CM *CM -^ CM IN. xO COrH rH CM • O ^t CM CM ^H CM Oi oo JN» -^ 00 CM o cb CM CM ^ CM o OD o PQ crOOOOSH HN ^ H O HO rH CD In. CO CMO xO CM CO r~\ Cl> rH I CO Oi O CM Ci O 00 CM • • • M O H j xO CD COH CO Cp r-\ 6~i r~\ ■+3 r—H bo •rH 1 IN- CO xO H O CMo • • • iQO^lN CM ^ CM H Jt> OO oo 9 CM . xb CD CD *CM -^ CM CD rH CMCM CD X p . xb 6o xb • CM ^i CM CO H rH ^p co 9in. ob ts. ! CM ^ CM | CD • ■^ CM COn^ Oi I- IN. CO COr—J H rH O O ^P CMCM *? !>> rH CO 00 6o ^ *MM WinJ ■ puii^W O CO ^P COip xp CO I>» I>» IN. I>» CO H r—\ r—1 rH CO O ^P CO o op IN» 00 IN. H H H 440 ON THE THERMAL CONDUCTIVITIES OF SOLIDS AND LIQUIDS. 00/6 r -00/4 ■ooia -00/0 k. •0006 ■0006 -0004 -0002 * C-lycprire 6 Ebhyl-klc o Mixture50 per cent, by weight of Glycerine and waterAcetic acid and water .Ethyl alcohol and water .Glycerine and ethyl alcohol . * • 00103•00085•0008000050 Mean percentage change per degree between 25° and 45° C, •0063•0058•0068•0050 It will be seen from this that the thermal conductivities of mixtures decrease withincrease of temperature at roughly the same rate per cent, as their constituents. Statement of Results. The preceding results may be summarised as follows :— 1. Solids which are not very good conductors of heat, in general decrease inconductivity with increase of temperature in the neighbourhood of 40° C. Glass isan exception to this rule. 2. Liquids in the neighbourhood of 30° C follow the same law. 3. The conductivity of a substance does not invariably change abruptly at themelting point. 4. The thermal conductivity of
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