Latihan PSAT 24/25 Kelas XIi

Quiz
•
Chemistry
•
11th Grade
•
Hard
Ify Aldilla
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Reaksi kesetimbangan berikut yang geser ke kanan jika tekanan diperbesar
2HI(g) ⇄ H2(g) + I2(g)
N2O4(g) ⇄ 2NO2(g)
CaCO3(s) ⇄ CaO(s) + CO2(g)
2NO(g) + O2(g) ⇄ 2NO2(g)
S(s) + O2(g) ⇄ SO2(g)
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Perhatikan reaksi berikut
N2(g) + 3H2(g) ⇄ 2NH3(g) ΔH = -92 kJ
Jika suhu diturunkan
NH3 akan bertambah
NH3 akan berkurang
N2 akan bertambah
H2 akan bertambah
N2 dan H2 akan bertambah
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Ke dalam ruang tertutup 1 dm3 dimasukkan 1 mol gas A dan 1 mol gas B.
2A + 3B ⇄ A2B3
Setelah reaksi mencapai kesetimbangan, masih tersisa 0.25 mol gas B. Kc reaksi tersebut
16
32
64
72
80
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Reaksi H2(g) + I2(g) ⇄ 2HI(g) mempunyai Kc = 69 pada suhu 340°C. Pada suhu yang sama, Kp reaksi itu (R = 0.082)
5,66
69
1923,72
3468,3
23460
5.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Sebanyak 1 mol N2O4(g) dipanaskan dalam suatu ruang hingga terurai 50% membentuk NO2(g). Jika tekanan total campuran gas = 6 atm, nilai Kp pada suhu itu
1/8
1/4
1
8
16
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Diketahui
H2(g) + Br2(g) --> 2HBr(g) ΔH = -72 kJ
Untuk menguraikan 11.2 dm3 (STP) gas HBr diperlukan kalor ... kJ
9
18
36
72
144
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Apabila 100 mL NaOH 1 M direaksikan dengan 100 mL HCl 1 M dalam bejana, ternyata suhu naik dari 29°C jadi 37.5°C. Jika kalor jenis 4.2 J/g°C, ΔH untuk reaksi
NaOH(aq) + HCl(aq) --> NaCl(aq) + H2O(l)
-45,9 kJ
-54,6 kJ
-71,4 kJ
-77,7 kJ
-82,3 kJ
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