Question

Mohon bantuannya..... 26

Answer 1

TKG
• Energi
T = 400 K
n = 5 mol
Ek = __?
U = __?

• gas monoatomik

Energi kinetik rata-rata
Ek = 3/2 k T
Ek = 3/2 • 1,38×10^-23 • 400
Ek = 8,28×10^-21 J ← jwb

Energi dalam
U = N Ek = n Na Ek
U = 5 • 6,02×10^23 • 8,28×10^-21
U = 24923 J ← jwb


• gas diatomik

Energi kinetik rata-rata
Ek = 5/2 k T
Ek = 5/2 • 1,38×10^-23 • 400
Ek = 1,38×10^-20 J ← jwb

Energi dalam
U = N Ek = n Na Ek
U = 5 • 6,02×10^23 • 1,38×10^-20
U = 41538 J ← jwb