Pernyataan yang benar tentang reaksi eksoterm adalah…
TERMOKIMIA KIMIA XI SMA
Quiz
•
Chemistry
•
11th Grade
•
Hard
Widodo Smanis
Used 43+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang benar tentang reaksi eksoterm adalah…
Membutuhkan kalor, perubahan entalpi positif
Menbutuhkan kalor, perubahan entalpi negatif
Menghasilkan kalor, perubahan entalpi negatif
Menghasilkan kalor, perubahan entalpi positif
Menghasilkan kalor, perubahan entalpi nol
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut persamaan termokimia pembentukan 1 mol NH3 yang benar adalah …..
N2 + 3H2 ------- 2NH3
1/2 N2 + 3/2H2 ------ NH3
2NH3 --------- N2 + 3H2
NH3 ---------1/2 N2 + 3/2 H2
N + 3H ------- NH3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika diketahui : N2 + 3H2 ------ 2 NH3 ∆H = -92 Kj, maka perubahan entalpi pembentukan 1 mol NH3 adalah …….
– 92 Kj
– 46 Kj
+ 46 Kj
+ 92 Kj
+ 184 Kj.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut persamaan termokimia penguraian 1 mol Na2SO4 yang benar adalah …..
Na + S +2 O2 ----- Na2SO4
Na2SO4 ----- 2Na + S + O4
Na2SO4 ---- 2Na + SO4
Na2 + S +2 O2 --- Na2SO4
Na2SO4 --- 2Na + S + 2O2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika diketahui : Ca + O2 + H2 ------- Ca(OH )2 ∆Hr = + 100 Kj, maka perubahan entalpi penguraian
2 mol senyawa Ca(OH )2 adalah …
– 100 Kj
-200 KJ
+ 100 Kj
+200 Kj
+ 50 Kj
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut persamaan termokimia pembakaran I mol C3H6 yang benar adalah …..
C3H6 + O2 ----- 2CO2 + 3H2O
C3H6 + 3O2 ------ 3 CO + 3 H2O
2C3H6 + 12 O2 ----- 6 CO2 + 12H2O
CO2 + H2O ----- C3H6 + O2
3CO + 12 H2O ---- 2C3H6 + 8O2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika diketahui : 2 C2H2 + 5 O2 ----- 4CO2 + 2H2O ∆H = -50 Kj, maka perubahan entalpi pembakaran 1 mol senyawa C2H2 adalah :
+ 50 Kj
50 Kj
+ 25 Kj
25 Kj
100 Kj
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