Tindak balas kimia akan berlaku akibat daripada ___________ zarah-zarah (atom, molekul atau ion). (HURUF KECIL)

KADAR TINDAK BALAS

Quiz
•
Chemistry
•
10th Grade
•
Hard
SITI Moe
Used 2+ times
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20 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimanakah mangkin dapat meningkatkan kadar tindak balas?
Menyediakan lintasan alternatif dengan merendahkan tenaga pengaktifan
Meningkatkan tenaga kinetik zarah bahan tindak balas
Mengurangkan bilangan zarah bahan tindak balas
Meningkatkan jumlah luas permukaan yang terdedah
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara berikut yang manakah tidak benar tentang Teori Perlanggaran?
Semua perlanggaran di antara zarah bahan tindak balas akan membentuk hasil
Zarah bahan tindak balas mesti berlanggar antara satu sama lain untuk membenarkan tindak balas berlaku
Kadar tindak balas bergantung kepada frekuensi perlanggaran berkesan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kadar tindak balas meningkat apabila sedikit larutan kuprum (II) sulfat ditambah kepada campuran serbuk magnesium dan asid nitrik cair. Pernyataan manakah menerangkan mengapa tindak balas meningkat?
Tenaga pengaktifan dikurangkan
Tenaga kinetik zarah-zarah bahan tindak balas bertambah
Jumlah bilangan zarah bahan tindak balas per unit isipadu bertambah
Jumlah isipadu zarah bahan tindak balas
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Antara berikut, manakah ciri-ciri tindak balas endotermik?
Menyerap tenaga haba daripada persekitaran
Membebaskan tenaga haba ke persekitaran
Tenaga bahan tindak balas melebihi tenaga hasil tindak balas
Tenaga hasil tindak balas melebihi tenaga bahan tindak balas
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
When small solid pieces of a reactant are used in a single reaction, ...
Apabila cebisan kecil pepejal bahan tindak balas digunakan dalam satu tindak balas, ...
the reaction rate is reduced.
kadar tindak balas berkurang.
the frequency of collisions between particles increases.
frekuensi perlanggaran antara zarah bertambah.
the effective collision frequency between particles is reduced.
frekuensi perlanggaran berkesan antara zarah berkurang.
the total surface area exposed to collisions increases.
jumlah luas permukaan terdedah kepada perlanggaran bertambah.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah 1 menunjukkan aras tenaga untuk tindak balas X + Y ----------> Z.
Apakah tenaga pengaktifan untuk tindak balas ini?
Diberi bahan tindak balas / reactants ke puncak lengkung mempunyai 480 Kj/mol tenaga dan hasil tindak balas/ products ke puncak lengkung mempunyai 350 Kj/mol tenaga.
830 kjmol-1
350 kjmol-1
130 kjmol-1
480 kjmol-1
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