
TERMOKIMIA
Authored by 060_ Arya Rizki
Chemistry
2nd Grade
Used 7+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Pernyataan yang benar tentang reaksi endoterm adalah….
a. Entalpi awal lebih besar daripada entalpi akhir dan ΔH > 0
b.Entalpi awal lebih kecil daripada entalpi akhir dan ΔH >
c. Entalpi awal lebih besar daripada entalpi akhir dan ΔH < 0
d. Entalpi awal lebih kecil daripada entalpi akhir dan ΔH < 0
e. Entalpi awal sama dengan entalpi akhir dan ΔH = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Sebuah Kristal KNO3 dimasukkan ke dalam tabung reaksi kemudian ditetesi dengan air. Pada tabung reaksi terasa dingin. Reaksi ini dapat digolongkan….
a. Eksoterm, energi berpindah dari sistem ke lingkungan
b. Eksoterm, energi berpindah dari lingkungan kesistem
c. Endoterm, energi berpindah dari sistem ke lingkungan
d. Endoterm, energi berpindah dari lingkungan ke sistem
e. Endoterm, energi tidak berpindah
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Perubahan entalpi dari reaksi manakah yang berikut ini dapat disebut dengan perubahan entalpi pembentukan ΔHf° Na2SO4 kristal….
A.
B.
D.
E.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Diantara persamaan termokimia di bawah ini yang merupakan perubahan entalpi penguraian adalah…
A.
B.
C.
D.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Jika diketahui:
Perubahan entalpi pada penguraian 1 mol gas NH3 menjadi unsur-unsurnya adalah….
a. -92 kJ
b. -46 kJ
c +46 kJ
d + 92 kJ
e.+46 kJ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. tahui ΔHc°C = -393,5 kJ mol‾¹ , berapa kalor yang terjadi pada pembakaran 1 kg arang, jika dianggap bahwa arang mengandung 48% karbon dan Ar C = 12?
.a 740 kJ
b. 470 kJ
c. 740 kJ
d. 470 kJ
e. 740 kJ
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. Entalpi pembakaran asetilena adalah -1300 kJ, entalpi pembentukan asetilena, C2H2 adalah…. (ΔHf° CO2 = -395 ; ΔHf° H2O = -285 )
a. -225 kJ
b. +225 kJ
c. -450 kJ
d. +450 kJ
e.. -620 kJ
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