
Ulangan Harian Kimia
Quiz
•
Chemistry
•
11th Grade
•
Hard
Jusniar Jusniar
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39 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan yang tepat mengenai reaksi tersebut adalah ...
Reaksi mempunyai entalpi bernilai positif
Entalpi pereaksi lebih lebih kecil dari pada entalpi hasil reaksi
Reaksi bersifat eksoterm karena melepas panas kelingkungan.
Suhu sesudah reaksi lebih rendah daripada suhu sebelum reaksi.
Reaksi bersifat endoterm karena menyerap energi dan lingkungan
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara reaksi beriku yang merupakan contoh reaksi edoterm dalam kehidupan sehari-hari....
reaksi fotosintesis
pembakaran kertas
perubahan air menjadi es
pembusukan sampah oleh mikroorganik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan reaksi yang menunjukan reaksi endoterm ditunjukan oleh angka ....
1) dan 2)
1) dan 4)
2) dan 3)
3) dan 5)
4) dan 5)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika 12,8 gram CaC2 (Mr = 64) direaksikan dengan Air, perubahan entalpi ynag terjadi adalah. . . .
Reaksi melepas kalor sebanyak 8,22 kJ
Reaksi menyerap kalor sebanyak 41,1 kJ
Reaksi melepas kalor sebanyak 41,1 kJ
Reaksi melepas kalor sebanyak 8,22 kJ
Reaksi menyerap kalor sebanyak 8,22 kJ
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dari reaksi-reaksi kimia di bawah ini merupakan reaksi endoterm adalah. . . . .
4NH3(g) + 5O2(g) 4NO(g)+ 6H2O(g) ∆H= -9O5Kj
Ca(s) + C(s) + 32O2 (g) CaCO3(s) + 1207,1 kJ
CaO(s) Ca(s) +12O2(g) - 635,5 kJ
Fe3O4(s) + 4H2(g) 3Fe(s) + 4H2) (l) ∆H = -35,5 kkal
H2(g) + Br2(g) 2HBr(g)DH = -18,5 kkal
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perubahan entalpi yang menyertai pembentukan 2 mol CH3CI adalah….
+149,6 kJ mol-1
+74,8 kJ mol-1
+37,4 kJ mol-1
-74,8 kJ mol-1
149,6 kJ mol-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perubahan entalpi penguraian C6H12 adalah….
+69,33 kJ mol-1
-104 kJ mol-1
+104 kJ mol-1
-208 kJ mol-1
+208 kJ mol-1
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