GATE CH · 2026 · CH
Question 39: Mass Transfer
Give it a try, then reveal the answer to check your work.
Question 39
CHMCQ2 marksNeeds review
A volatile organic compound (VOC) is to be adsorbed from air onto a bed of activated carbon. The equilibrium capacity of activated carbon at the feed conditions is 0.4 grams VOC per gram of activated carbon. The column contains 4 grams of activated carbon per cm
of cross-section. The feed rate into the adsorber column is 0.2 grams VOC cm
h
. Breakthrough time is defined as the time at which the concentration at the exit of the bed (
) reaches a value of
, where
is the concentration of VOC in the feed. The breakthrough time for the bed is 2 h. The area under the
curve between the initial and breakthrough times is 0.1 h. Which one of the following is the fraction of unused bed at breakthrough?Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2026CH
GATE CH 2026 · Paper 1
Chemical Engineering · Original paper archive
- Section
- Chemical Engineering
- Question type
- Multiple choice (MCQ)
- Marks
- 2 marks
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
chemical engineering
GATE CH previous year questions
process engineering
GATE CH previous year questions
chemical processes
GATE CH previous year questions
mass transfer
GATE CH previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.