
sumatif genap 2024/2025
Authored by Khairatu Wardah
Chemistry
11th Grade
Used 1+ times

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35 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Reaksi yang terjadi dapat digolongkan ke dalam reaksi.........
endoterm karena tidak ada perpindahan energi
endoterm karena energi berpindah dari sitem kelingkungan
endoterm karena energi berpindah dari lingkungan ke sistem
eksoterm karena energi berpindah dari sistem ke lingkungan
eksoterm karena energi berpindah dari lingkungan ke sistem
2.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
sebanyak 50 mL larutan NaOH 1 M direaksikan dengan 50 mL larutan HCl 1 M dalam kalorimeter sederhana. ternyata suhu larutan naik dari 27 0C menjadi 31 0C. jika kalor jenis larutan yaitu 4,2 J/g 0C, maka perubahan entalpi penetralan tersebut adalah.......kJ/mol
-33.600
-1.680
-33,6
-16,8
-1,68
3.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
jika diketahui..........
maka, ΔHc CH4 adalah.........kJ
-640,70
-740,85
-890,55
-998,40
-1040,25
4.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Diketahui energi ikatan rata-rata sebagai berikut.
perubahan entalpi pada pembakaran 13 g gas asitelena (C2H2) adalah........kJ. ( Ar H=1; C =12)
-1.219,50
-609,75
-364,00
+609,75
+1.219,50
5.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
357 kJ/mol
393 kJ/mol
2.142 kJ/mol
2.249 kJ/mol
2.356 kJ/mol
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Gula akan lebih mudah larut dalam air panas daripada air dingin. hal ini menunjukkan kenaikan suhu umumnya menaikkan laju reaksi. alasan yang tepat untuk menjelaskan hal tersebut adalah......
kecepatan masing-masing molekul menjadi sama
kenaikkan suhu menghasilkan reaksi dapat balik
energi kinetik dari molekul-molekul meningkat
energi kinetik dari molekul-molekul
kenaikan suhu memperkecil energi aktivasi
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Berdasarkan data percobaan 1 dan 3, faktor yang memengaruhi laju reaksi adalah.........
luas permukaan
perubahan suhu
kosentrasi
sifat zat
katalis
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