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- 1 1 2.3: First-Order Reactions
- 2 2 Half Lives
- 3 3 The resistance of a resistor is reduced to half of its initial value. In doing so, if other parameters of the circuit remain unchanged, the heating effects in the resistor will become (A) two times (B) half (C) one – fourth (D) four times
- 4 4 The resistance of a resistor is reduced to half of

## 1 2.3: First-Order Reactions

**Author:**chem.libretexts.org**Published Date:**11/17/2021**Review:**4.89 (808 vote)**Summary:**· The half-life (t1/2) is a timescale on which the initial population is decreased by half of its original value, represented by the following**Matching search results:**As a check, dimensional analysis can be used to confirm that this calculation generates the correct units of inverse time.**Source:**https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Kinetics/02%253A_Reaction_Rates/2.03%253A_First-Order_Reactions

## 2 Half Lives

**Author:**chem.purdue.edu**Published Date:**03/21/2022**Review:**4.92 (680 vote)**Summary:**To determine a half life, t½, the time required for the initial concentration of a reactant to be reduced to one-half its initial value, we need to know:**Matching search results:**For a second order reaction 2A products or A + B products (when [A] = [B]), rate = k[A]2:**Source:**https://www.chem.purdue.edu/gchelp/howtosolveit/Kinetics/Halflife.html

## 3 The resistance of a resistor is reduced to half of its initial value. In doing so, if other parameters of the circuit remain unchanged, the heating effects in the resistor will become (A) two times (B) half (C) one – fourth (D) four times

**Author:**doubtnut.com**Published Date:**03/30/2022**Review:**4.97 (869 vote)**Summary:**The resistance of a resistor is reduced to half of its initial value. In doing so, if other parameters …

Posted:**Matching search results:**AlgebraBasic Geometrical IdeasData HandlingDecimalsFractions**Source:**https://www.doubtnut.com/question-answer-physics/the-resistance-of-a-resistor-is-reduced-to-half-of-its-initial-value-in-doing-so-if-other-parameters-642525828

## 4 The resistance of a resistor is reduced to half of

**Author:**tutorix.com**Published Date:**11/15/2021**Review:**4.89 (608 vote)**Summary:**Thus, when the resistance is reduced to half the initial value, the heating effect in the resistor will become two times**Matching search results:**According to the question, all the parameters of the circuit remain unchanged. Also, the voltage in the circuit remains unchanged. So, the current will be given as:**Source:**https://www.tutorix.com/question/46166/the-resistance-of-a-resistor-is-reduced-to-half-of-its-initial-value-in-doing-so-if-other-parameters-of-the-circuit-rema