Heat for Advanced Students |
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Page 4
... constant . Consequently , the temperature of the vapour above pure water , boiling under some arbitrary pressure , will be constant , and we may define this as the second fixed point on the thermometric scale . The bulb and that part of ...
... constant . Consequently , the temperature of the vapour above pure water , boiling under some arbitrary pressure , will be constant , and we may define this as the second fixed point on the thermometric scale . The bulb and that part of ...
Page 23
... constant level , the lower part of the reservoir is made of leather ( Fig . 14 ) , and this can be raised or lowered by the aid of a screw , A ( Fig . 13 ) , till the mercury surface coincides with the point of an ivory pin P. The ...
... constant level , the lower part of the reservoir is made of leather ( Fig . 14 ) , and this can be raised or lowered by the aid of a screw , A ( Fig . 13 ) , till the mercury surface coincides with the point of an ivory pin P. The ...
Page 31
... constant value L for the length of the thread whatever Taking & as the correction to be added to readings in the neighbourhood of o ° ; 810 , that to be added to readings near 10 ° & c . , its position might have been in the tube ...
... constant value L for the length of the thread whatever Taking & as the correction to be added to readings in the neighbourhood of o ° ; 810 , that to be added to readings near 10 ° & c . , its position might have been in the tube ...
Page 48
... constant . This property should render Guillaume's nickel steel particularly suitable for the construction of pendulums , & c . water . Example 1 .-- A seconds pendulum is composed of a small sphere of platinum attached to the end of a ...
... constant . This property should render Guillaume's nickel steel particularly suitable for the construction of pendulums , & c . water . Example 1 .-- A seconds pendulum is composed of a small sphere of platinum attached to the end of a ...
Page 81
... constant for temperatures between o ° and 100 ° C. For very high temperatures its value differed somewhat considerably from its value at low tempera- tures . Between 0 and 100 ° C. the mean value for the coefficient of cubical expansion ...
... constant for temperatures between o ° and 100 ° C. For very high temperatures its value differed somewhat considerably from its value at low tempera- tures . Between 0 and 100 ° C. the mean value for the coefficient of cubical expansion ...
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Common terms and phrases
absolute temperature absorbed adiabatic air thermometer apparatus aqueous vapour atmospheric pressure body boiling point Boyle's Law bulb c.cs calorimeter centimetre coefficient of expansion coefficient of linear compressed condensed constant pressure contained cooling copper corresponding cubical curve cycle cylinder density Describe determined difference distance entropy equal equation experiment EXPT external filled flask freezing point galvanometer gases given glass tube gram gram of water heat engine Hence high temperature hydrogen hygrometer increase initial isothermal kinetic energy latent heat latter length Let us suppose linear expansion liquefied liquid Lond mass means measured melting point mercury thermometer metal method mixture molecules motion obtained paraffin wax passing perature perfect gas performed piece piston placed produced Q₁ quantity of heat Regnault's represents saturated vapour solid solidifying specific heat steam substance T₁ T₂ tempera thermal radiations thermopile therms ture vapour pressure velocity vessel W₁ whilst
Popular passages
Page 272 - It is hardly necessary to add, that anything which any insulated body, or system of bodies, can continue to furnish without limitation, cannot possibly be a material substance; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner Heat was excited and communicated in these experiments, except it be MOTION.
Page 368 - It is impossible by means of inanimate material agency to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects.
Page 341 - It is impossible for a selfacting machine, unaided by any external agency to convey heat from one body to another at a higher temperature, or heat cannot of itself pass from a colder to a warmer body.
Page 271 - Ib. of icecold water to boil) could have been furnished by so inconsiderable a quantity of metallic dust ? and this merely in consequence of a change of its capacity for Heat...
Page 306 - Explain why the specific heat of a gas at constant pressure is greater than the specific heat at constant volume.
Page 341 - It is impossible for a self-acting machine, unaided by any external agency, to convey heat from a body at a low to one at a higher temperature;" or " Heat cannot of itself (that is, without the performance of work by some external agency) pass from a cold to a warmer body.
Page 287 - ... the science of thermodynamics." When work is transformed into heat, or heat into work, the quantity of work is equivalent to the quantity of heat.
Page 435 - ... inch Ib. sec. units is -0012 and the latent heat of steam is 536. Find the temperature of the under side of the heating surface. Explain carefully why this is not the temperature of the furnace. 7. Define the thermal conductivity of a substance and describe some way of measuring it. 8. How many units of heat will be conducted in an hour through each square centimetre of an iron plate 0'02 cm. thick, its two sides being kept at the respective temperatures of 0°C. and 50° C., the mean conductivity...
Page 287 - With what velocity must a lead bullet at 50°C. strike against an obstacle in order that the heat produced by the arrest of its motion, if all produced within the bullet, might be just sufficient to melt it?
Page 115 - Again, at constant volume, the pressure of a given mass of gas is proportional to the absolute temperature (p.