
penentuan perubahan entalpi Energi ikatan rata-rata

Quiz
•
Chemistry
•
11th Grade
•
Hard
Standards-aligned
Ahmad Ziad
Used 55+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
+94 kJ
+81 kJ
-81 kJ
-94 kJ
-208 kJ
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1.173,5 kJ
735,5 kJ
391 kJ
245 kJ
130 kJ
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui
N2(g) + 3H2(g) --> 2NH3(g) H= - 107 kJ/mol
jika energi ikatan :
N N : 941 kJ/mol
H – H : 436 kJ/mol
maka energi ikatan rata-rata N-H dalam NH3 adalah … .
393 kJ/mol
642 kJ/mol
782 kJ/mol
2249 kJ/mol
2346 kJ/mol
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui energi ikat:
H – I = 299 kJ/mol
H – H = 436 kJ/mol
I – I = 151 kJ/mol
maka kalor yang diperkukan untuk menguraikan 256 gram HI (Ar H = 1; I = 127) menjadi unsur-unsurnya adalah … .
5,5, kj
11,0 kj
22,0 kj
44,0 kj
88,0 kj
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui energi ikatan rata-rata untuk
C – C : 348 kJ/mol C – Cl : 328 kJ/mol
C = C : 641 kJ/mol H – Cl : 431 kJ/mol
C – H : 413 kJ/mol
Maka perubahan entalpi reaksi
H2C = CH2 + HCl H3C – CH2 – Cl adalah … .
– 17 kJ
+ 17 kJ
– 44 kJ
+ 44 kJ
+ 47 kJ
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Data energi ikatan rata-rata:
C - C : 348 kJ/mol
C - H : 414kJ/mol
C - O : 358 kJ/mol
O - H : 463 kJ/mol
O = O : 495 kJ/mol
C = O : 799 kJ/mol
Spirtus yang mengandung etanol dibakar dengan persamaan reaksi:
CH3-CH2-OH + 3 O2 --> 2 CO2 + 3 H2O
Perubahan entalpi yang dihasilkan untuk pembakaran tersebut adalah ....
-67,10 kJ
-33,55 kJ
-10,00 kJ
+10,00 kJ
+6,71 kJ
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui energi ikatan rata-rata:
H–H = 436 kJ.mol–1
H–F = 568 kJ.mol–1
F– F = 160 kJ.mol–1
Kalor yang diperlukan untuk menguraikan 10 gram HF menjadi unsur-unsurnya adalah ... kJ. (Ar H = 1, F = 19)
800
540
270
135
67,5
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