Question

Determinati masa de neon care la incalzirea izobara cu 80K a efectuat un lucru mecanic d 831 j

Answer 1

μ=20 g/mol=0,02 kg/mol

T₂=T₁+80

L=υRΔT=υR(T₂-T₁)=υR(T₁+80-T₁)=80υR=>υ=L/80R=831/80*8,31=100/80=1,25 moli

υ=m/μ=>m=υμ=1,25*0,02=0,025 kg=25 g