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(3), 
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2.
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d: d=______________________________.
2. . = __________
3. 
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4. (. .1).
5. (3) :
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4. , :
620<λ.<800; 510<λ.<575; 380<λ.<450.
. , () .
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, =2910-3 
;R , R=8,31 
;
, ; =t0C+273.
2.
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=_______________________________________=_______.
2. . .
3. , , . . ; b - , c , V = a b c.
4. (2):
m=--------------------------------------------------------------------=___________.
5. N V n : 
, Na - , Na=61023-1
N= ------------------------ = ________________;
n= ------------------------- =________________.
6. 1.
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