Quiz Kolom 13.5
Authored by Tubagus Singgih
Chemistry
4th Grade
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Untuk mengurangi efek difusi longitudinal, strategi yang tepat adalah…
A. Menaikkan kecepatan gas pembawa
B. Menurunkan suhu oven
C. Memperpendek kolom
D. Menggunakan partikel support lebih besar
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Faktor utama yang menyebabkan difusi eddy signifikan pada packed column adalah…
A. Perbedaan ukuran partikel support
B. Tingginya suhu oven
C. Panjang kolom terlalu pendek
D. Diameter kolom terlalu kecil
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Difusi longitudinal pada GC lebih besar dibandingkan LC karena…
J
A. Molekul dalam gas lebih cepat berdifusi daripada dalam cairan
B. Kolom GC lebih panjang daripada LC
C. Suhu GC lebih tinggi
D. Tekanan pada GC lebih rendah
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fungsi utama kolom dalam GC adalah…
A. Memanaskan sampel
B. Memisahkan komponen campuran
C. Mengalirkan gas pembawa
D. Menguapkan pelarut
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolom dengan fase diam terikat pada dinding bagian dalam kapiler disebut…
A. SCOT
B. WCOT
C. PLOT
D. Packed column
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolom packed biasanya terbuat dari…
A. Stainless steel atau kaca, diisi support padat berlapis fase diam
B. Fused silica tanpa pelapis
C. Karet tebal dengan serbuk silika
D. Aluminium foil dilapisi polimer
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Istilah packed column dalam GC merujuk pada…
A. Kolom yang berisi partikel padat dengan fase diam terimpregnasi
B. Kolom tanpa pengisi
C. Kolom dengan dinding dalam dilapisi fase diam cair
D. Kolom hanya untuk analisis gas
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