
Termokimia
Authored by Pak Fa
Chemistry
1st - 3rd Grade
Used 7+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sejumlah magnesium dibakar untuk membentuk 1 gram MgO (Mr = 40). Jika dilepaskan kalor 14,4 kJ, maka pembentukan MgO adalah .........
a. - 14,4 kJ
b. 210 kJ
c. 14,4 kJ
d. 576 kJ
e. - 210 kJ
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika kita ingin mengetahui kalor yang menyertai reaksi dalam sebuah kalorimeter, maka data-data di bawah ini diperlukan, kecuali ...
a. suhu awal
b. massa air
c. kalor jenis
e. suhu akhir
d. Tekanan
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Harga DH reaksi hanya bergantung pada keadaan awal dan akhir reaksi serta tidak tergantung pada jalannya reaksi. Pernyataan tersebut dikemukakan oleh ....
a. Proust
b. Lec Chatlier
c. Germain Hess
d. John Dalton
e. Lavoiser
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energi yang dibutuhkan untuk memutuskan semua ikatan 1 mol molekul menjadi atom-atom bebas dalam keadaan gas tersebut ..........
a. energi disosiasi
b. energi atomisasi
c. energi ikatan rata-rata
d. energi kinetic
e. energi mekanik
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi dalam kehidupan sehari-hari berikut ini yang merupakan reaksi endoterm adalah … .
respirasi
fotosintesis
perkaratan besi
pembakaran
kapur tohor dimasukkan dalam air
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Eksoterm adalah
Melepas
Menerima
Melepas kalor
Menerima kalor
7.
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
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