
POST TEST TERMOKIMIA
Authored by VALENTINE FEBRIAROKA
Chemistry
11th Grade
Used 1+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Pernyataan yang benar tentang Entalpi adalah ....
Energi yang tidak tetap
Energi yang mengalir dari sistem ke lingkungan
Energi yang mengalir dari lingkungan ke sistem
Energi yang di ukur pada tekanan tetap yang dimiliki oleh suatu sistem
Energi dalam
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Perubahan entalpi ................................... adalah perubahan entalpi untuk pembentukan 1 mol senyawa dari dari unsur-unsurnya.
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Diketahui persamaan reaksi : 2 C (s) + 2 H2 (g) ----> C2H4 (g) ΔH = + 52,28 kJ
Dari persamaan reaksi di atas , perubahan entalpi pembentukan gas etana memerlukan kalor sebesar 52,28 kJ.
BENAR
SALAH
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
2 CO2 (g) ⟶ 2 C (g) + 2 O2 (g) ΔH = + 787 kJ
Berdasar data tersebut di atas maka ΔHf 1 mol CO2 adalah ..........kJ/mol
+ 1574
+ 787
+ 393,5
- 393,5
- 787
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
N2 (g) + 3 H2 (g) ⇌ 2 NH3 ΔH = – 92 kJ
Besarnya perubahan entalpi penguraian standar gas NH3 adalah …
A. – 92 kJ/mol
B. – 46 kJ/mol
C. + 46 kJ/mol
D. + 92 kJ/mol
E. + 184 kJ/mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Diketahui reaksi :
CH4 (g) + 2 H2O (g) ---> CO2 (g) + 2 H2O (g) ΔHc = - 802,3 kJ/ mol
Maka perubahan entalpi pembakaran adalah .....
A.+ 802, 3 kJ/mol
B. + 401,15 kJ/mol
C. - 802,3 kj/mol
D. -401,15 kJ/mol
E. - 267,43 kJ/mol
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Perubahan entalpi penguraian standar adalah perubahan entalpi yang dibutuhkan atau dilepaskan pada penguraian 1 mol senyawa menjadi unsur-unsur penyusunnya yang diukur pada keadaan standar.
BENAR
SALAH
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