Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 10: Problem 97

A substance, X, has the following properties: Sketch a heating curve for substance \(X\) starting at $-50 .^{\circ} \mathrm{C}$

Short Answer

Expert verified
To sketch a heating curve for substance X starting at -50°C: 1. Create a graph with x-axis (time) and y-axis (temperature) and plot the starting point at (-50°C, 0 min). 2. Draw a line with a positive slope representing the initial solid phase until it reaches the melting point. 3. Draw a horizontal line at the melting point, representing the phase transition from solid to liquid. 4. Draw a line with a positive slope representing the liquid phase until it reaches the boiling point. 5. Draw a horizontal line at the boiling point, representing the phase transition from liquid to gas. The final heating curve will show the temperature changes across solid, melting, liquid, and boiling phases.

Step by step solution

01

1. Initial Solid Phase

Substance X begins at a temperature of -50°C. Start by drawing the x-axis (time) and y-axis (temperature) on the graph. Plot the point (-50°C, 0 min) as the starting point of the curve. As the substance is heated, the temperature increases until it reaches its melting point.
02

2. Melting at the Phase Transition from Solid to Liquid

At the melting point, the substance will start to transition from a solid to a liquid. During this phase transition, the temperature will remain constant until all the solid has melted. Draw a horizontal line from the end of the solid phase to represent the melting.
03

3. Liquid Phase

Once the entire substance has melted, it will be in the liquid phase, and the temperature will again start to increase as it absorbs more heat. Draw a line with a positive slope to represent the liquid phase, indicating the temperature increase over time.
04

4. Boiling at the Phase Transition from Liquid to Gas

At the boiling point, the substance will start to transition from a liquid to a gas. Again, during this phase transition, the temperature will remain constant until all the liquid has turned to gas. Draw a horizontal line from the end of the liquid phase to represent the boiling.
05

5. Final Heating Curve

Finally, the heating curve for substance X should show the initial solid phase with an increasing temperature, a horizontal line at the melting point, the liquid phase with an increasing temperature, and another horizontal line at the boiling point. This graph allows us to visualize how the temperature of substance X changes as it is heated from -50°C.

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

The memory metal, nitinol, is an alloy of nickel and titanium. It is called a memory metal because after being deformed, a piece of nitinol wire will return to its original shape. The structure of nitinol consists of a simple cubic array of Ni atoms and an inner penetrating simple cubic array of Ti atoms. In the extended lattice, a Ti atom is found at the center of a cube of Ni atoms; the reverse is also true. a. Describe the unit cell for nitinol. b. What is the empirical formula of nitinol? c. What are the coordination numbers (number of nearest neighbors) of Ni and Ti in nitinol?

What quantity of energy does it take to convert 0.500 \(\mathrm{kg}\) ice at \(-20.0^{\circ} \mathrm{C}\) to steam at \(250.0^{\circ} \mathrm{C} ?\) Specific heat capacities: ice, $2.03 \mathrm{J} / \mathrm{g} \cdot^{\circ} \mathrm{C} ;\( liquid, \)4.18 \mathrm{J} / \mathrm{g} \cdot^{\circ} \mathrm{C} ;$ steam, 2.02 \(\mathrm{J} / \mathrm{g} \cdot^{\circ} \mathrm{C}\) $\Delta H_{\mathrm{vap}}=40.7 \mathrm{kJ} / \mathrm{mol} ; \Delta H_{\mathrm{fus}}=6.02 \mathrm{kJ} / \mathrm{mol} .$

Carbon tetrachloride, \(\mathrm{CCl}_{4},\) has a vapor pressure of 213 torr at \(40 .^{\circ} \mathrm{C}\) and 836 torr at \(80 .^{\circ} \mathrm{C}\) . What is the normal boiling point of \(\mathrm{CCl}_{4} ?\)

You and a friend each synthesize a compound with the formula \(\mathrm{XeCl}_{2} \mathrm{F}_{2} .\) Your compound is a liquid and your friend's compound is a gas (at the same conditions of temperature and pressure). Explain how the two compounds with the same formulas can exist in different phases at the same conditions of pressure and temperature.

Consider the compounds \(\mathrm{Cl}_{2}, \mathrm{HCl}, \mathrm{F}_{2},\) NaF, and HF. Which compound has a boiling point closest to that of argon? Explain.
See all solutions

Recommended explanations on Chemistry Textbooks

Nuclear Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Physical Chemistry

Read Explanation

Inorganic 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