4 Dec 2021
Problem 78
Page 475
Section: Cumulative Problems
Chapter 11: Liquids, Solids, and Intermolecular Forces
Textbook ExpertVerified Tutor
4 Dec 2021
Given information
Melting point 
Boiling point 
Step-by-step explanation
Step 1.
Heating curve for one mole of benzene:
Based on the datas given here for 
of benzene a graph can be drawn with Temperature in 
on 
and heat added in 
on the 
.
of benzene a graph can be drawn with Temperature in on and heat added in on the . Thus this graph which is drawn with the temperature as a function of heat added while heating one mole of benzene is the heating curve for one mole of benzene,which is as shown here in this image;
This heating process can be divided into five different stages.
In two of these segments (2 and 4) the temperature is constant as heat is added because the added heat goes into producing the phase transition of a solid to liquid or liquid to gas which are phase changes, thus not increasing the temperature.
The two states are in equilibrium during the transition and the temperature remains constant. The amount of heat required to achieve the state change is given by 
.Since here its one mole of methanol,
.
.Since here its one mole of methanol, .In the other three segments (1, 3, and 5), temperature increases linearly. These segments represent the heating of a single state in which the deposited heat raises the temperature in accordance with the substance’s specific heat capacity.
Unlock all Textbook Solutions
Already have an account? Log in
Principles of Chemistry Molecular Approach
3rd Edition, 2014
Tro
ISBN: 9780321971944