An Elementary Treatise on Heat |
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Page 5
... similar state with respect to a third substance , oil . We have thus the water in equilibrium of temperature with the mercury and the mercury in equilibrium of temperature with the oil . Now we know , as the result of experience , that ...
... similar state with respect to a third substance , oil . We have thus the water in equilibrium of temperature with the mercury and the mercury in equilibrium of temperature with the oil . Now we know , as the result of experience , that ...
Page 16
... similar reason the reading of an unprotected thermometer in vacuo will be different from its reading in air . 24. Again , when the volume of mercury in the stem of a thermometer is exposed to a temperature different from that of the ...
... similar reason the reading of an unprotected thermometer in vacuo will be different from its reading in air . 24. Again , when the volume of mercury in the stem of a thermometer is exposed to a temperature different from that of the ...
Page 26
... similar to that of Fig . 7 , the telescope and vertical scale of inches performing the part of the pointer and graduated quadrant . 35. Ramsden's method . In Roy and Ramsden's appa- ratus there are three troughs , the first and the. 26 ...
... similar to that of Fig . 7 , the telescope and vertical scale of inches performing the part of the pointer and graduated quadrant . 35. Ramsden's method . In Roy and Ramsden's appa- ratus there are three troughs , the first and the. 26 ...
Page 29
... similar to that of the maximum thermometer the expansion of the bar may be determined . It may be easily shewn that in this apparatus the index B ( neglecting its contraction since it is small ) will remain pushed out by a quantity ...
... similar to that of the maximum thermometer the expansion of the bar may be determined . It may be easily shewn that in this apparatus the index B ( neglecting its contraction since it is small ) will remain pushed out by a quantity ...
Page 36
... similar to that at another . Universal experience demonstrates the truth of this state- ment ; and it can be very easily shewn that assuming it to be correct the cubical dilatation of a substance will then be as nearly as possible three ...
... similar to that at another . Universal experience demonstrates the truth of this state- ment ; and it can be very easily shewn that assuming it to be correct the cubical dilatation of a substance will then be as nearly as possible three ...
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Common terms and phrases
absorbs absorption acid amount of heat antimony aqueous vapour atmosphere bismuth body boiling point Boyle's law Bromine bulb calorimeter carbon carbonic acid chemical coefficient cold colour column condensed conductivity constant temperature dark heat denote density dilatation Dulong and Petit electric enclosure energy equal ether evaporation excess of temperature expansion experiments Fahr flow of heat freezing galvanometer gases Gay Lussac glass gravity heating effect hence high temperature inches of mercury increase instrument iron lamp-black latent heat light liquid luminous means melting metals method millimètres nearly nitrous oxide observed obtained particles pass perature plate polarized pound pressure produced quantity of heat radiant heat radiation rays reflected refrangibility regard Regnault result rock salt shew shewn solid source of heat specific gravity specific heat steam substance suppose surface thermometer tourmaline tube vacuo velocity of cooling vessel volume wave length weight
Popular passages
Page 304 - That the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity of force expended.
Page 66 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer shall be the genuine standard of length at 62° F., and if lost it shall be replaced by means of its copies.
Page 66 - May one thousand eight hundred and twenty-five, the Straight Line or Distance between the Centres of the Two Points in the Gold Studs in the Straight Brass Rod, now in the Custody of the Clerk of the House of Commons, whereon the Words and Figures
Page 80 - ... passing from the solid to the liquid, and from the liquid to the gaseous form, or the contrary, occasioning endless vicissitudes of temperature over the globe.
Page 82 - ... thermometer, this will very often be sufficient to produce solidification, if not drop in a small crystal. The mass solidifies at once and the temperature rises very considerably. 112. Laws of Fusion. We may thus sum up our results with the following laws of fusion. (1) A substance begins to melt at a temperature, which is constant for the same substance, if the pressure be constant, and is called the melting-point.