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T₁ = 273 K
ρ₁ = 1,25 kg/m³
P₂ = 1 atm = 76 cmHg
T₂ = 343 K
ρ₂ = ?
T₂ = 70⁰C = 343⁰K
. . . . M P
ρ = _____
. . . . R T
Sehingga :
. . . . ρ R T
M = _____
. . . . . . P
M₁ = M₂
ρ₁ R T₁. . . . ρ₂ R T₂
_______ = ________
. . P₁. . . . . . . .P₂
ρ₁ • T₁. . . . . ρ₂ • T₂
_______ = ________
. . P₁. . . . . . . .P₂
1,25 • 273. . . . ρ₂ • 343
_________ = __________
. . . .1. . . . . . . . . 1,0526
343ρ₂ = 359,2
ρ₂ = 1,05 Kg/m₃
Jadi, massa jenisnya akan menjadi 1,05 Kg/m₃
Ok?