
Sumatif 4.3 termokimia

Quiz
•
Chemistry
•
11th Grade
•
Hard
Rosaliyanti SMA6 samarinda
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9 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Diketahui beberapa reaksi berikut ini
(1) 2C2H5OH(aq) + 6O2(g) → 4CO2(s) + 6H2O(g) ∆H= –1160 kJ
(2) 2C2H5OH(aq) → 4C(s) + 6H2(g) + O2(g) ∆H= + 1122 kJ
Perubahan entalpi pembentukan standar dari etanol (∆Hf C2H5OH) adalah…kJ/mol
Petunjuk : ketik jawaban berupa angka tanpa titik dan tanpa spasi, jika desimal gunakan koma, jangan lupa berikan tanda + atau -
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Diketahui
∆Hf0 C2H6 = -85 kJ
∆Hf0 CO2 = –394 kJ
∆Hf0 H2O= –286 kJ
Perubahan entalpi reaksi di bawah ini adalah….kJ
C2H6(aq) + O2(g) → CO2(s) + H2O(g)
petunjuk : ketik jawaban berupa angka tanpa titik dan tanpa spasi, jika desimal gunakan koma, jangan lupa berikan tanda + atau -
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Diketahui :
2 NO(g) → N2(g) + O2(g) ∆H= –190 kJ
NO(g) + O2(g) → NO2(g)) ∆H= –60 kJ
∆H untuk reaksi N2(g) + 2O2(g) → 2NO2(g) adalah… .kJ
petunjuk : ketik jawaban berupa angka tanpa titik dan tanpa spasi, jika desimal gunakan koma, jangan lupa berikan tanda + atau -
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Diketahui data energi ikatan :
C – H : 415 kJ/mol
C – C : 345 kJ/mol
C = O : 741 kJ/mol
O = O : 498 kJ/mol
O – H : 464 kJ/mol
Reaksi pembakaran propana dapat dituliskan seperti di bawah ini
C3H8(aq) + 5O2(g) → 3CO2(s) + 4H2O(g)
Perubahan entalpi reaksi di atas adalah….kJ/mol
njuk : ketik jawaban berupa angka tanpa titik dan tanpa spasi, jika desimal gunakan koma, jangan lupa berikan tanda + atau -
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
10 gram NaOH (Mr=40) dan 250 mL larutan HCl 1 M dimasukkan ke dalam Kalorimeter. Setelah bercampur, ternyata suhu Kalorimeter beserta isinya naik dari 25 °C menjadi 37 °C. Kalor jenis larutan = 4,2 J g–1 K–1 dan kapasitas kalor kalorimeter = 12 J K–1. maka lengkapilah reaksi di bawah ini !
NaOH(aq) + HCl(aq) →NaCl(aq) ΔH = .... KJ
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Energi yang di lepaskan untuk membakar sempurna 4 gram gas CH4 (Mr = 16) adalah ... KJ
7.
DRAG AND DROP QUESTION
1 min • 1 pt
reaksi penguraian 0,1 mol padatan CuCl2 menjadi padatan CuCl dan gas klorin (a) kalor sebesar (b) , (c) kJ
8.
FILL IN THE BLANK QUESTION
1 min • 1 pt
ΔH1 =+ .... kJ
Petunjuk : ketik jawaban berupa angka tanpa titik dan tanpa spasi, jika desimal gunakan koma, jangan lupa berikan tanda + atau -
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui diagram siklus reaksi sebagai berikut :
Besarnya nilai ∆H3 adalah ....
∆H3 = +Q kJ + R kJ – P kJ
∆H3 = +Q kJ – R kJ – P kJ
∆H3 = + R kJ + P kJ –Q kJ
∆H3 = + R kJ – ( P kJ + Q kJ )
∆H3 = +Q kJ + R kJ + P kJ
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