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________________ १२२ मानते हैं'। इस तरह जड़ पदार्थ की अनश्वरता के नियम की शब्दावलि में परिवर्तन की आवश्यकता वैज्ञानिकों को मालूम पड़ने लगी और उनका सुझाव है कि प्रामाणिकता की दृष्टि से 'जड़-पदार्थ के स्थायित्व का नियम (The Law of conervation of matter) और 'शक्ति के स्थायित्व का नियम' (The Law of conservation of energy) इन दोनों नियमों को एक ही नियम में समा देना चाहिए तथा उसका नाम 'जड़-पदार्थ और शक्ति के स्थायित्व का नियम' (The Law of Conservation of Mass) कर देना चाहिए । १. नव पदार्थ २. The theory of relativity of relativity requires that an emission of energy E in a chemical change should be accompained by a loss of mass equal to E/C2, where c is the velocity of light. Matter is therefore no longer regarded as indestructible by a chemical change, although the mass lost by conversion to energy in any change which can be controlled in the laboratory is quite beyond detection by the most sensitive balance: the loss of mass attending the combustion of 1 grams of phosphorus is 2.6 x 10-10 (Genereal and Inorganic Chemistry by P. J. Durrant p. 18) Until the present century it was also thought that matter could not be created or destroyed, but could only by converted from one form into another. In recent years it has, however, been found possible to convert radiant energy, and to convert radiant energy into matter. The mass m of the matter obtained by the conversion of an amount E of radiant energy or convertible into this amount of radiant energy is given by the Einstein equation (E=mc2) Until the present century scientists made use of a law of conservation of matter and a law of conservation of energy. These two conservation laws must now be combined into a singly one, the law of conservation of mass, in which the mass to be conserved in cludes both the mass of [matter in the system and the mass of] energy in the system. However, for ordinary chemical reactions we may still make use of the "law" of conservation of matter-that that matter cannot be created or destroyed, but only changed inform recognising that there is limitation on the validity of this law: it is not to be applied if one of the processes involving the conversion of radiant energy into matter or matter into radiant energy takes place in the system under consideration. (General Chemistry by Linus Pauling pp.4-5.)
SR No.006272
Book TitleNav Padarth
Original Sutra AuthorN/A
AuthorShreechand Rampuriya
PublisherJain Vishva Bharati
Publication Year1998
Total Pages826
LanguageHindi
ClassificationBook_Devnagari
File Size15 MB
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