Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 10: Problem 11

What influences the changes in molar enthalpy?

Short Answer

Expert verified
The changes in molar enthalpy are influenced by factors such as temperature, pressure, nature of the reactants, and their concentration.

Step by step solution

01

Temperature Influence

Temperature can significantly influence the molar enthalpy. This is because an increase in temperature typically speeds up the rate of reaction, and this can increase the heat absorbed or expelled. Therefore, temperature influences change in molar enthalpy.
02

Pressure Influence

Pressure too can impact the molar enthalpy, especially in reactions involving gases. Higher pressures typically force the molecules closer together and this can affect the rate and heat of the reaction, hence influencing the molar enthalpy.
03

Nature of Reactants

The nature of the reactants also influences molar enthalpy. Certain substances are known to react more vigorously and produce more heat than others. Therefore, the type of reactants involved in the reaction can significantly influence the molar enthalpy.
04

Concentration Influence

The concentration of the reactants is also a major influencing factor. Higher concentrations mean more reactant particles are present, which can increase the amount of heat produced or absorbed during the reaction, consequently impacting the molar enthalpy.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Give examples of situations in which (a) the entropy is low; (b) the entropy is high.

\(.\) The standard entropies for the following substances are 26.9 \(\mathrm{J} / \mathrm{K} \bullet\) mol for \(\mathrm{MgO}(s)\) 213.8 \(\mathrm{J} / \mathrm{K} \bullet \mathrm{mol}\) for \(\mathrm{CO}_{2}(g),\) and 65.7 \(\mathrm{J} / \mathrm{K} \bullet \mathrm{mol}\) for \(\mathrm{MgCO}_{3}(s) .\) Determine the entropy for the reaction below. $$ \mathrm{MgCO}_{3}(s) \rightarrow \mathrm{MgO}(s)+\mathrm{CO}_{2}(g) $$

Distinguish between heat and temperature.

Predict whether \(\Delta S\) is positive or negative for the following reaction. $$\mathrm{Ag}^{+}(a q)+\mathrm{Cl}^{-}(a q) \rightarrow \mathrm{AgCl}(s)$$

What is entropy?
See all solutions

Recommended explanations on Chemistry Textbooks

The Earths Atmosphere

Read Explanation

Chemical Analysis

Read Explanation

Organic Chemistry

Read Explanation

Nuclear Chemistry

Read Explanation

Chemistry Branches

Read Explanation

Chemical Reactions

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free