1. Student obtained the value 26.5 for the slope of the fittingstraight line on the...
1. Student obtained the value 26.5 for the slope of the fitting straight line on the graph P=const*(1/V) representing the experimental data from the water-based 2-tube apparatus. The experiment was conducted at temperature 22 degree Celsius. What value for the ideal gas constant follows from the obtained slope? The additional necessary data are provided in the text.
2. In the pressure versus temperature experiment, the graph P=const*(T+273.15) of the experimental data (temperature in degree Celsius) was fitted with a straight line, which appeared to have a slope of 345 and an intercept of 93770. What temperature (in degree Celsius) will be defined as the absolute zero by the extrapolation of this fitting line towards zero pressure?
Homework Answers
V(1 mol) = (22.414x10^-3)(T)/ 273.15 K = (22.414x10^-3)(299.65 K)/ 273.15 K = 0.0245
n = ? r^2 Lo / V (1 mol) = (? 0.0095^2)(0.917m)/ 0.0245 = 0.0106
R = "graph slope"/nT = 26.5/ (0.0106)(299.65 K) = 8.343
This is the first part. Still working on the second question.
Add Answer to:
1. Student obtained the value 26.5 for the slope of the fittingstraight line on the...
This is a question for homework in an undergraduate Physical Chemistry class: - Please use 273.15...
This is a question for homework in an undergraduate Physical
Chemistry class:
- Please use 273.15 when converting between Kelvin and Celsius
temperatures.
- Use 96485 for Faraday Constant
- In problems that require fitting of a curve or straight line
use linear regression. Do not use trend line. Sometimes the results
can be different.
QUESTION 6 The table below shows the vapor pressure vs temperature experimental data for a substance of molar mass 207.2 g mol-1: T<K > 1500...
This is a question for homework in an undergraduate Physical Chemistry class: - Please use 273.15...
This is a question for homework in an undergraduate Physical
Chemistry class:
- Please use 273.15 when
converting between Kelvin and Celsius temperatures.
- Use 96485 for Faraday Constant
- In problems that require fitting of a curve or straight line
use linear regression. Do not use trend line. Sometimes the results
can be different.
QUESTION 5 Between 298.2 K to its normal boiling point 353.24 K the vapor pressure of a certain organic compound can be fitted to the...
1. These questions are referring to the Boyle's law experiment only. a. Analyzing the shape of...
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1. Calculate what the pressure of the air is in the
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number of moles) through Gay-Lussac's Law.
2. Calculate the natural logarithm of the vapor
pressures, ln(P/P^-), where P^- is 100 kPa.
3. Calculate the inverse of the absolute
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4. Prepare a graph (either by hand or in excel) with
ln(P/P^-) plotted on the y-axis and 1/T...
1. Consider the linear fit to your data. What physical value does the value of the...
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This is a question for homework in an undergraduate Physical
Chemistry class:
- Please use 273.15 when converting between Kelvin and Celsius
temperatures.
- Use 96485 for Faraday Constant
- In problems that require fitting of a curve or straight line
use linear regression. Do not use trend line. Sometimes the results
can be different.
QUESTION 6 The table below shows the vapor pressure vs temperature experimental data for a substance of molar mass 207.2 g mol-1: T<K > 1500...
This is a question for homework in an undergraduate Physical
Chemistry class:
- Please use 273.15 when
converting between Kelvin and Celsius temperatures.
- Use 96485 for Faraday Constant
- In problems that require fitting of a curve or straight line
use linear regression. Do not use trend line. Sometimes the results
can be different.
QUESTION 5 Between 298.2 K to its normal boiling point 353.24 K the vapor pressure of a certain organic compound can be fitted to the...
1. These questions are referring to the Boyle's law experiment only. a. Analyzing the shape of the curve in the plot of pressure versus volume, do you think the relationship between the pressure and volume of a confined gas is direct or inverse? Explain your answer. b. What experimental factors are assumed to be constant in this experiment? c. Using P. V, and k, write an equation representing Boyle's law AND write a verbal statement that correctly expresses Boyle's law,...
Volume, liters UUUUU Temperature, °C 100 80 60 2.98 2.87 2.68 2.53 2.33 2.21 2.07 1.88 -40 1 sing oraphing software, set up your graph with volume ranging from 0 to 3 liters on the vertical axis, and temperature ranging from -350 to +100°C on the horizontal axis. Plot the experimental data given above and draw the best straight line. Extend the line to the point where the volume is zero. This is the experimental value for absolute zero in...
002 The preliminary experimental result of th temperature of respectively. The DAB value obtained from the experiment was 0.1429 cm'ls. e diffusion coefficients, DAB for gas carbon dioxide (CO,) in oxygen(e) was measured using large lateral shearing interferometric system at 35° Cand atmospheric pressure. The test was conducted in diffusion cell which is attached in the system with dinension of 0.01 m and 100 em for diameter and tube long. By using Chapman and Enskog Method, predict the value of...
What is the volume of the sphere in Procedure 2 in units of
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1. Calculate what the pressure of the air is in the
flask at each of the temperatures for Trials 1 through 5. The
temperature is related to the temperature (at constant volume and
number of moles) through Gay-Lussac's Law.
2. Calculate the natural logarithm of the vapor
pressures, ln(P/P^-), where P^- is 100 kPa.
3. Calculate the inverse of the absolute
temperatures.
4. Prepare a graph (either by hand or in excel) with
ln(P/P^-) plotted on the y-axis and 1/T...
1. Consider the linear fit to your data. What physical value does the value of the intercept tell you? Pressure (kPa) o Pressure (kPa) O Curve Fit Linear : y-max+b m:0.28503 +l-0.0064234 b: 93.921 +/0.30777 Correlation: 0.99924 RMSE 0.11879 110 108 100 104 30 5C 60 40 70 Temperature (C) LabQuest PDF Page 1 -09/10/19 anssa periment # 2 Absolute Zero 2. What assumption(s) about pressure, temperature, and molecular motion must be made to calculate absolute zero by this method?...
I wanna understand if I got the slope right and how to
answer the next questions
Measurement of the Gas Constant and Molar Volume Volume of Oxygen Gas s. What is the slope, m, of graph 2? Show your calculations here and include the correct units. Remember that logarithms do not have units! 6. What is the y-intercept, b, of graph 27 Show your calculations here and include the correct Write the equation of the straight line of graph 2....
just the conclusion and the question parts + the graph of M
versus q
thanks!
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