Question: Waters boiling point changes with differing external pressure. At 1 atm, the boiling point of water is 100 C. When a vacuum is applied to

Water’s boiling point changes with differing external pressure. At 1 atm, the boiling point of water is 100 °C. When a vacuum is applied to water and the external pressure decreases to 0.023 atm, water boils at room temperature (20 °C). Using this information, calculate the enthalpy of vaporization for water in kJ/mol with 2 significant figures.

Hint: Use units of Kelvin for temperature!

Group of answer choices

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

Background In recent years, the citizens of Kingston have been experiencing water shortages every year during drought periods. Though significant quantities of groundwater are available in aquifers...

What is the difference between a reversible and irreversible gas expansion? [26] How does a car battery store energy? [27] What are the common muzzle exit velocities for ammunition in normal ries?...

Problem 2 5 0 Marks Consider a mixture of methanol ( 1 ) , ethanol ( 2 ) and water ( 2 ) ternary system. Assume ideal behavior of the solution and Raoult's law can be applied. The Antoine constants...

Activity 8 The figure below shows the vapor pressures of ether, ethanol and water as a function of temperature. Use the figure to estimate the boiling points for these three liquids at sea level (at...

Answer 8:26 PM Fri Dec 13 .Ill @ 8% 4 CHM-111 Final Exam Multiple Choice okay v Done 34.6.C 78.3"C 100'C 800 760 Normal boiling point 600 Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol)...

Medical grade oxygen has become a product of national priority now. Oxygen concentration based on pressure swing adsorption is quickly becoming an obsolete technology. You are asked to dissect a...

science Charles' Law Jacques Alexandre Charles, a French physicist, performed an experiment using a balloon, hot water, and cold water. Based on his observations, he discovered the relationship...

What is the table of reagents; include name, structure, molecular weight, melting and boiling point, and density? What are the main reactions? What are the mechanisms for the main reaction? To...

3-1C W hat is the difference between saturated liquid and compressed liquid? 3-2C What is the difference between saturated vapor and superheated vapor? 3-3C Is there any difference between the...

Colligative Properties Freezing Point Depression in Aqueous Solutions OBJECTIVES - To measure the freezing points of the aqueous solutions of different ionic and molecular substances. To estimate the...

What is the integrated report? What are the key points of integrated information in the Integrated Report issued by the Optus company The Corporate Reporting Manager of the assigned company...

What is the shear strength in terms of effective stress on a plane within a saturated soil mass at a point where the total normal stress is 295 kN/m2 and the pore water pressure 120kN/m2? The...

Based on your experience, how have best practices helped or hindered innovation?

Will the future value be larger or smaller if we compound an initial amount more often than annuallyfor example, every 6 months, or semiannuallyholding the stated interest rate constant? Why?

Shenzhen Co uses the percentageofreceivables basis to record bad debt expense It estimates that 1 of accounts receivable will become uncollectible Accounts receivable are 420,000 at the end of the...

Moran owns a building he bought during year 0 for $227,000. He sold the building in year 6. During the time he held the building he depreciated it by $40,250. What is the amount and character of the...

Which resistance training system helps to increase intensity and optimize time? Rest-pause Pyramid Occlusion Superset

How significant for a performer to know his/her medical conditions before participating in Moderate, Vigorous, Physical Activities (MVPA) like cheer dance?

Design a minimum-mass symmetric three-bar truss (the area of member 1 and that of member 3 are the same) to support a load P, as was shown in Fig. 2.9. The following notation may be used: Pu = P cos...

5 banklare terug in the banking crisis starting in 2008 and explain how the govern- ment protects your funds during such crises.

4. Twenty-two states have implemented utility deregulation. Has your state or a neighboring state implemented utility deregulation? How does it seem to be working?

To access the case "Learning about the Federal Reserve System," visit www.mhhe.com/ublOe