Analysis of initial reaction rates (or velocities) allows for which of the following assumptions?

Question

BlackTom AI · Accepted Answer

In the analysis of initial reaction rates (velocities), several simplifying assumptions are employed to make the mathematics tractable and the interpretation straightforward.
Option 1: '[S] varies linearly with time' — This is not an assumption typically made. If substrate concentration changed noticeably during the initial period, the rate would not be constant and the relationship between rate and time could become nonlinear. Therefore, assuming linear variation of [S] would misrepresent the early-stage kinetics.
Option 2: '[S] remains constant' — This is the standard assumption for initial rate measurements. By focusing on a very brief time window at the start of the reaction, the amount of substrate consumed is negligible, so [S] can be treated as effectively constant, which simplifies deriving the rate law from the observed velocity.
Option 3: '[S] varies exponentially with time' — Exponential variation would imply a very rapid, nonlinear consumption of substrate from the outset, which is not how initial-rate experiments are designed or interpreted. This option contradicts the common practice of treating [S] as constant during the initial, linear portion of the reaction.
Overall, the commonly taught premise in initial-rate analysis relies on keeping [S] essentially constant to isolate how rate responds to the fixed starting substrate concentration, avoiding complications from rapid substrate depletion.

BIOC 440 A Lecture Concept Exercise | 12

Analysis of initial reaction rates (or velocities) allows for which of the following assumptions?

View Explanation

Log in for full answers

Similar Questions

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler