
ULANGAN KIMIA TEMOKIMIA
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Medium
Standards-aligned
Irmi MIMI
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan diagram diatas, hubungan ∆H1, ∆H2, ∆H3 yang benar adalah . . . . .
∆H2 = ∆H1 - ∆H3
∆H2 = ∆H1 + ∆H3
∆H3 = ∆H1 - ∆H2
∆H3 = ∆H1 + ∆H2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Data energi ikatan rata rata :
C=C = 609 kJ/mol
C-Cl = 326 kJ/mol
C-H = 412 kJ/mol
C-C = 345 kJ/mol
H-Cl = 426 kJ/mol
Besarnya entalpi reaksi
CH2=CH2 + HCl → CH3CH2Cl
adalah,......
-312 kJ/mol
-48 kJ/mol
48 kJ/mol
100 kJ/mol
312 kJ/mol
Tags
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika reaksi antara logam barium dengan asam klorida encer dicampurkan ke dalam tabung reaksi yang tersumbat dengan rapat, gas hidrogen di dalam sistem tidak dapat meninggalkan sistem. Akan tetapi, perambatan kalor meninggalkan sistem tetap terjadi melalui dinding pada tabung reaksi. Pada percobaan ini termasuk ke dalam …
Sistem terbuka
Perubahan entalpi
Sistem tertutup
Perubahan energi dalam
Sistem terisolasi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proses reaksi di alam yang berlangsung spontan seperti pertunjukan kembang api merupakan salah satu contoh dari reaksi ...
Reaksi kimia
Reaksi eksoterm
Reaksi endoterm
Reaksi sistem terbuka
Reaksi perubahan entalpi
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ciri-ciri reaksi eksoterm adalah … .
Lingkungan menyerap kalor dari sistem
Sistem menyerap kalor dari lingkungan
Sistem dan lingkungan memiliki kalor sama
Kalor sistem dan lingkungan jika dijumlahkan sama dengan nol
Pada akhir reaksi, kalor lingkungan selalu lebih kecil dari kalor sistem
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui persamaan termokimia:
C(s) + O2(g) → CO2(g) ΔH = –393,5 kJ
Pernyataan yang benar dari reaksi di atas adalah …
Pembakaran 1 mol karbon menghasilkan kalor sebesar 393,5 kJ
Pembakaran 1 mol karbon dioksida menghasilkan kalor sebesar 393,5
Pembentukan 1 mol karbon dioksida membutuhkan kalor sebesar 393,5 kJ
Pembakaran 1 mol karbon membutuhkan kalor sebesar 393,5 kJ
Pembentukan 1 mol karbon dioksida menghasilkan kalor sebesar 196,75 kJ
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan termokimia berikut ini merupakan perubahan entalpi pembentukan standar (ΔHfo), kecuali … .
C(s) + 2 Cl2(g) → CCl4(l) ΔHf° = –134 kJ
Ca(s) + Cl2(g) → CaCl2(s) ΔHf° = –795,8 kJ
Fe2(s) + 3/2 O2(g) → Fe2O3(s) ΔHf° = –822,2 kJ
Na(s) + ½ H2(g) + C(s) + 3/2 O2(g) → NaHCO3(s) ΔHf° = –947,7
Zn(s) + ½ O2→ → ZnO(s) ΔHf° = –348 kJ
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