yang nomor 2 please... cepat

Teori Kinetik Gas

m = 0,8 ton = 8 × 10⁵ kg
P = 2 × 10⁵ N/m²
T = 47 °C = 320 K
Ar He ≈ 4
R = 8,314 J/mol K
V = __ ?

n = m / Ar
n = 4 / (8 × 10⁵)
n = 5 × 10⁻⁶ mol


PV = nRT
V = (nRT) / P
V = (5 × 10⁻⁶ × 8,314 × 320) / (2 × 10⁵)
V = 6,65 × 10⁻⁸ m³