Siapapun tolongg

<p>Jawaban : 27/16.</p><p>&nbsp;</p><p>Tetapan kesetimbangan berdasarkan tekanan gas adalah hasil kali tekanan parsial gas-gas hasil reaksi dibagi dengan hasil kali tekanan parsial gas-gas pereaksi, masing-masing tekanan parsial gas dipangkatkan koefisiennya menurut persamaan reaksi.&nbsp;</p><p>&nbsp;</p><p>1. Hitung mol gas NH₃ yang terdisosiasi</p><p>&nbsp;</p><p>α = n NH₃ terdisosiasi / n NH_3&nbsp; mula-mula</p><p>n NH₃ terdisosiasi = α x n NH_3&nbsp; mula-mula</p><p>n NH₃ terdisosiasi = 50% x 1</p><p>n NH₃ terdisosiasi = 0,5 mol</p><p>&nbsp;</p><p>2. Menentukan mol masing-masing senyawa dan mol total reaksi</p><p>&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2NH₃ ⇌ &nbsp; &nbsp;N₂ &nbsp; &nbsp; + &nbsp; &nbsp;3H₂</p><p>m = &nbsp; &nbsp;1</p><p>r &nbsp; = &nbsp; &nbsp; -0,5 &nbsp; &nbsp; &nbsp; &nbsp; +0,25 &nbsp; &nbsp; &nbsp; &nbsp; +0,75</p><p>s &nbsp; = &nbsp; &nbsp;0,5mol &nbsp; &nbsp;0,25 mol &nbsp; 0,75mol</p><p>&nbsp;</p><p>n total = n NH₃ + n N₂ + nH₂</p><p>n total = 0,5 + 0,25 + 0,75</p><p>n total &nbsp;= 1,5 mol</p><p>&nbsp;</p><p>3. Menentukan tekanan parsial</p><p>P NH₃ = (n NH₃ / n total) x P total</p><p>P NH₃ = (0,5 / 1,5) x 3 atm</p><p>P NH₃ = 1 atm&nbsp;</p><p>&nbsp;</p><p>P N₂ &nbsp; &nbsp;= &nbsp;(n N₂ / n total) x P total</p><p>P N₂ &nbsp; &nbsp;= (0,25 / 1,5) x 3 atm</p><p>P N_2&nbsp; &nbsp; = 1/2 atm</p><p>&nbsp;</p><p>P H_{2 &nbsp; &nbsp;} = (n H₂ / n total) x P total</p><p>P H_{2 &nbsp; &nbsp;} = (0,75 / 1,5) x 3 atm</p><p>P H_{2 &nbsp; &nbsp;} = 3/2 atm</p><p>&nbsp;</p><p>4. Menentukan Kp</p><p>&nbsp;</p><p>Kp = (P_produk)^koefisien / (P_reaktan)^koefisien</p><p>Kp = (P N₂ )(P H₂)³ / (P NH₃)²</p><p>Kp = 1/2 x (3/2)³ / 1²&nbsp;</p><p>Kp = 27/16</p><p>&nbsp;</p><p>Jadi, nilai Kpnya adalah 27/16</p>