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CH ENGR C115 · Dis 1A

Biochemical Reaction Engineering

Fall 2026Liu, Z.4 units

Seats, time, final and grades

Seats

Open, 1 seat left.

34 of 35 enrolled.

Meets

F 1:00pm-1:50pm

This discussion only. You also attend Lec 1.

Final

Mon 7 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.69
predicted, all instructors · 154 grades

154 letter grades, everyone who has taught CH ENGR C115.

Read 2 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

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Before you can enroll

Registrar's Restrictions cell, read 6 hours ago: "Undergraduate School of Engineering Majors".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 6 hours ago.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
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10pm

Meets: F 1:00pm-1:50pm

Lecture: TR 2:00pm-3:50pm

Mathematical Sciences 6229

Grades

3.69
predicted, all instructors · 154 grades

1 person has taught CH ENGR C115 in the grade record: ANNABI, NASIM at 3.70 over 154 grades.

A range
73%
P/NP
0%
D/F/W
0.0%

Full grade history for CH ENGR C115

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.

Reviews for CH ENGR C115 Search the reviews for Z. Liu

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 3221F
  • 3022F
  • 3523F
  • 2424F
  • 3325F
Enrollment by term: 21F 32, 22F 30, 23F 35, 24F 24, 25F 33

Peak 35 · most recent 25F at 33

Seats over time

Nothing read since 1 Oct, 2 hours ago. Over about 1 month before that, same seat count, but the status moved and came back and the seat count moved and came back.

1 time reopened
34 of 35 · 1 left
18 Aug 04:309 Sep 13:511 Oct 23:12 · 2 hours ago
dibs read 115 of the 903 hours its hourly record covers, 13%, and did not look in 788. dibs had no hourly record before 25 Aug, which is the other 173 of 1076 plotted.34 of 35 enrolled at the newest reading, 2 hours ago, with 1 left. Seats from 18 Aug 04:30 to 1 Oct 23:12, 34 to 34. dibs read 115 of the 903 hours its hourly record here covers, 13%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 788 hours dibs was keeping a record and did not reach this section. Nothing before 25 August at 09:00, where this section's record starts, has a read either way, which is 173 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not, and that was 2 hours ago. It is where the line stops, not where the count is now.

Show the readings (4)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 23:12 34 35 open - 27 of 191
24 Sep 01:12 34 35 open - 15 of 103
19 Sep 19:02 35 35 closed - 75 of 784, 173 no hourly record
18 Aug 04:30 34 35 open - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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