Question

For the liqids/solutions that were used during this experiment, should vapor pressure ever be negative? Why...

For the liqids/solutions that were used during this experiment, should vapor pressure ever be negative? Why or why not?

We were comparing methanol and ethanol. I did obtain a negative value for methanol, but I dont know if it has to do with my pressure being incorrect in one of the trials.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Vapor pressure is defined as the pressure exerted by the vapors in thermodynamic equilibrium with the liquid. The minimum vapor pressure can be zero only when there are no vapors present in the system.

Hence, negative vapor pressure has no existance.

But, there can be negative relative vapor pressure. Suppose if we are comparing vapor pressures of two components, then it can be negative with respect to the other component.
For example, if the vapor pressure of methanol is 1 atm and that of ethanol is 2 atm, then the relative vapor pressure of methanol will be -1 atm with respect to ethanol.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
12 ​During protein metabolism experiment, azo-proteins were used as a source of protein. Why? 2
12 ​During protein metabolism experiment, azo-proteins were used as a source of protein. Why? 2
The Question: Why was the reaction mixture from this experiment extracted with sodium carbonate? What gas...
The Question: Why was the reaction mixture from this experiment extracted with sodium carbonate? What gas is evolved during the addition? Write out the reaction(s) and explain why it is necessary to do this extraction. The only part of this question I know is that CO2 is the gas formed because we saw it in lab but I need help answering this question for my lab workup. Here is the lab information: The lab: was the synthesis of an ester...
I quit social media for 1 month -- it was the best choice I ever made...
I quit social media for 1 month -- it was the best choice I ever made I quit social media for a month. So, I quit Facebook, Instagram, Snapchat, and Twitter. I just needed a break. It was time to cut myself off I stopped using social media this morning and my brain is going crazy. I just realised how often I glance down just to see if I have a notification. When I wake up in the morning, on...
So I did a titration lab where were reacted various amounts of Mg with 10mL of...
So I did a titration lab where were reacted various amounts of Mg with 10mL of HCL and then neutralized the raction with NaOH. I have my table of values for Mass of Mg (g), Initial Volume NaOH (mL), Final Volume NaOH (mL), End Point Volume (mL), Limiting Reagent (Mg or HCL). There is a Titration table I need to fill in that asks for Moles of Mg (mol), Moles of NaOH (mol) and Moles of H+ reacting with Mg...
ONLY ANSWER IF YOU'RE WILLING TO ELABORATE! In your answer include "WHAT PROGRAMS" were used and...
ONLY ANSWER IF YOU'RE WILLING TO ELABORATE! In your answer include "WHAT PROGRAMS" were used and "HOW" you did it. I will need to learn this and I will need to make edit and must know which application were used. Briefly explain your answer so I may understand. I will complain and I will cancel my membership if only an answer is provided. Thanks! **IMPORTANT: Provide a 2 part answer so that I can TELL THE DIFFERENCE! I AM NEW...
PTL Club –The Harbinger of Things to Come? DISCUSSION QUESTIONS 1. Although audit reports should provide...
PTL Club –The Harbinger of Things to Come? DISCUSSION QUESTIONS 1. Although audit reports should provide assurance to investors and creditors that financial information presented is free of material misstatements and in accordance with GAAP, should audit reports be used to solicit investments, credit, or sales in a manner similar to Jim Bakker’s? How can a CPA firm prevent such behaviour? 2 During the trial, Mary K. Cline, senior auditor for Deloitte, Haskins and Sells stated: “Well, we made a...
Activity 1: Scientific Reports You may have heard the question “If a tree falls in a...
Activity 1: Scientific Reports You may have heard the question “If a tree falls in a forest and no one is around to hear it, does it make a sound?” A similar question can be asked about experiments. “If a researcher performs an experiment and never publishes the result has science been performed?” Many people would say no because science is the accumulation of knowledge. If the results of an experiment are not published, knowledge is not gained. The final...
How do you relate the most to this story and why? In two strong paragraphs, explain...
How do you relate the most to this story and why? In two strong paragraphs, explain what it is about the tone and/or imagery of the story that speaks to you and why. Use some text examples to support your response Hills Like White Elephants (1927) The hills across the valley of the Ebro1 were long and white. On this side there was no shade and no trees and the station was between two lines of rails in the sun....
Intermittent use of antimicrobial socks does not decrease microbial prevalence in student athletes: a pilot study....
Intermittent use of antimicrobial socks does not decrease microbial prevalence in student athletes: a pilot study. Concordia University Faculty Scholarship Week 2018 Abstract (Edited) Microbial infections of the skin are common occurrences in modern life. Owing to their communicable nature, these infections are often more common in the realm of athletics and locker rooms, with many high profile cases. Many products, including socks, have been marketed as being capable of decreasing the negative aspects of microbes associated with the body....
Problem 1: Relations among Useful Discrete Probability Distributions. A Bernoulli experiment consists of only one trial...
Problem 1: Relations among Useful Discrete Probability Distributions. A Bernoulli experiment consists of only one trial with two outcomes (success/failure) with probability of success p. The Bernoulli distribution is P (X = k) = pkq1-k, k=0,1 The sum of n independent Bernoulli trials forms a binomial experiment with parameters n and p. The binomial probability distribution provides a simple, easy-to-compute approximation with reasonable accuracy to hypergeometric distribution with parameters N, M and n when n/N is less than or equal...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT