Bahan kimia yang digunakan dalam pek panas bersifat eksotermik apabila bertindak balas dengan air. Tindak balas logam natrium dengan air juga bersifat eksotermik. Pada pendapat anda, adakah logam natrium dapat digunakan dalam penyediaan pek panas?
HABA TINDAK BALAS

Quiz
•
Chemistry
•
8th - 9th Grade
•
Medium
ghazali syikin
Used 3+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
YA
TIDAK
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ialah simbol bagi haba tindak balas.Apakah maksud haba peneutralan?
Haba yang terbebas apabila 1 mol air terhasil daripada tindak balas peneutralan asid dan alkali
Perubahan haba apabila 1 mol air terhasil daripada tindak balas peneutralan asid dan alkali
Haba yang diserap apabila 1 mol air terhasil daripada tindak balas peneutralan asid dan alkali
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Q ialah simbol bagi perubahan haba tindak balas.Apakah unit bagi Q?
kJ
kJ/Mol
J
J/Mol
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
HCl(ak) + NaOH(ak) → NaCl(ak) + H2O(ce) ∆H = -57 kJ mol−1
jika Asid hidroklorik digantikan dengan asid sulfurik, berapakah nilai haba peneutralan yang akan diperolehi?
∆H = -57 kJ mol−1
∆H = -114 kJ mol−1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tindak balas Eksotermik
Tindak balas kimia yang membebaskan haba ke persekitaran
Tindak balas kimia yang menyerap haba daripada persekitaran.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tindak balas endotermik
Tindak balas kimia yang membebaskan haba ke persekitaran.
Tindak balas kimia yang menyerap haba daripada persekitaran.
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