A short manual of heat1875 |
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Common terms and phrases
absolute expansion absorbs aëriform ammonia amount of heat apparent expansion atmosphere ball bismuth body boiling boiling-point bulb carbon dioxide carbonic anhydride coefficient of expansion cold colder combustion condensed conduction converted cooling copper cylinder dark heat degrees density earth ebullition energy ether evaporation expansion of mercury experiment Explain fall filled flame fluids force freezing fusion gases glass grammes grammes of water Gridiron Pendulum heat of fusion heat passes hydrogen hygrometer increased iron latent heat liquid litre matter melting mercury metal molecules motion normal pressure oxygen particles perature phosphorus piston platinum pound of water produced quantity of heat radiant heat radiation rays required to raise rise of temperature Safety-lamp silver solar solid source of heat space specific heat steam substance sulphur surface temperature thermal units thermometer tube vapour vessel volume water-vapour weight wire
Popular passages
Page 99 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity...
Page 99 - ... vibratory motion, the particles of the hottest bodies moving with the greatest velocity, and through the greatest space ; that in fluids and elastic fluids, besides the vibratory motion, which must be conceived greatest in the last, the particles have a motion round their own axes, with different velocities, the particles of elastic fluids moving with the greatest quickness ; and that in ethereal substances the particles move round their own axes, and separate from each other, penetrating in...
Page 103 - An hypothesis is any supposition which we make (either without actual evidence, or on evidence avowedly insufficient) in order to endeavour to deduce from it conclusions in accordance with facts which are known to be real ; under the idea that if the conclusions to which the hypothesis leads are known truths, the hypothesis itself either must be, or at least is likely to be, true.
Page 99 - ... the particles move round their own axes, and separate from each other, penetrating in right lines through space. Temperature may be conceived to depend upon the velocities of the vibrations; increase of capacity on the motion being performed in greater space ; and the diminution of temperature during the conversion of solids into fluids or gases, may be explained on the idea of the loss of vibratory motion, in consequence of the revolution of particles round their axes, at the moment when the...
Page 80 - The Specific Heat of a body is the ratio of the quantity of heat required to raise that body one degree to the quantity required to raise an equal weight of water one degree.
Page 51 - We have seen that the gaseous and liquid states are only distant stages of the same condition of matter, and are capable of passing into one another by a process of continuous change.
Page 123 - C. into water at 0° C. How many grammes of water could be raised by the same amount of heat from 0° C. to 1° C. (Latent heat of water 80.) 11.
Page 119 - You are provided with plates of the four metals mentioned in the last question, and are required to devise a means of determining their radiative powers ; how will you proceed ? 278. A weight of a ton is lifted by a steam engine to a height of 386 feet, what is the amount of heat consumed in this act ? 279.
Page 80 - The capacity of a body for heat is the number of units of heat required to raise that body one degree of temperature.
Page 28 - The specific gravity of a typical natural gas, which is the ratio of the density of the gas to the density of air at the same temperature and pressure, is 0.6.