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Sagot :

LEAFE

Bonjour,

Question 9 :

m =  10 kg

[tex]L = 481 \times 10^3 \ J.kg^{-1}[/tex]

1 kg ↔ 481 x 10³ J/kg

10 kg ↔ ? J/kg

[tex]\frac{10 \times 481 \times 10^3}{1} = 4 \ 810 \ 000 \ J[/tex]

ou

[tex]Q = m \times L = 10 \times 481 \times 10^3 = 4 \ 810 \ 000 \ J[/tex]

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