Preetest Laju Reaksi Kimia
Quiz
•
Chemistry
•
11th Grade
•
Hard
ERNA WARISMAN
Used 3+ times
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Apa yang dimaksud dengan laju reaksi kimia?
Waktu yang dibutuhkan reaksi untuk mencapai kesetimbangan
Perubahan konsentrasi zat per satuan waktu
Jumlah zat yang digunakan dalam reaksi
Energi yang dilepaskan dalam reaksi
2.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Manakah dari faktor berikut yang dapat meningkatkan laju reaksi?
Menurunkan suhu
Mengurangi konsentrasi pereaksi
Menggunakan katalis
Mengurangi luas permukaan zat padat
3.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Mengapa penggunaan serbuk lebih efektif dalam mempercepat reaksi dibandingkan zat padat utuh?
Lebih ringan
Lebih mudah dipanaskan
Meningkatkan luas permukaan
Mengurangi energi aktivasi
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Bagaimana pengaruh katalis dalam reaksi kimia?
Mengubah hasil reaksi
Mempercepat reaksi tanpa ikut bereaksi
Menambah jumlah produk
Mengubah suhu reaksi
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Jika suhu dinaikkan, maka laju reaksi akan...
Menurun karena partikel menjadi lebih lambat
Tetap sama karena jumlah partikel tidak berubah
Meningkat karena tumbukan efektif lebih banyak
Berkurang karena volume meningkat
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