1. berapa energi kinetik rata rata yg dimiliki 0.6 L gas bertekanan 1 atm dgn 9x10^16 partikel ? 2. gas helium pada volume tertentu berada pada suhu 27c. berapa enegi kinetik rata rata partikel gas tersebut ?
Dzaky111
1. Dik : V = 0,6 L = 6 x 10^-4 m³ P = 1 atm = 10^5 Pa N = 9 x 10^16 pqrtikel Dit : Ek.rata-rata = ....? Jwb : p = 2/3 x Ek x N/V Ek.rata-rata = 3/2 PV/N = 3/2(10^5 x 6 x 10^-4)/9 x 10^16 = 10^-16 J 2. Dik : T = 27 + 273 = 300 K k = 1,38 x 10^-23 JK^- Dit : Ek.rata-rata = ......? Jwb : Ek = 3/2 kT = 3/2 x 1,38 x 10^-23 x 300 = 621 x 10^-23 J
P = 1 atm = 10^5 Pa
N = 9 x 10^16 pqrtikel
Dit : Ek.rata-rata = ....?
Jwb : p = 2/3 x Ek x N/V
Ek.rata-rata = 3/2 PV/N
= 3/2(10^5 x 6 x 10^-4)/9 x 10^16
= 10^-16 J
2. Dik : T = 27 + 273 = 300 K
k = 1,38 x 10^-23 JK^-
Dit : Ek.rata-rata = ......?
Jwb : Ek = 3/2 kT
= 3/2 x 1,38 x 10^-23 x 300
= 621 x 10^-23 J