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Exercitiile 3,4. Dau coroana.

Exercitiile 34 Dau Coroana class=

Răspuns :

3.   pV= niuxRT

2X67,2= niux0,082x(273+27)

calculsaza niu......,

apoi m=niuxM= niux28=.........

5. aplica ecuatia

p1/T1= p2/T2     4/293= 8/T2--------> CALCULEAZA  T2= t2+ 273, apoi t2!