User Account

All Pages

Which dotted lines best approximates the behavior of helium

Assignment Help Chemistry
Reference no: EM131552900

Question: Nitrogen gas (N2, M = 28u) at room temperature (300K) and atmospheric pressure has a density of 1.25kgm-3. The measured root mean square velocity of a N2 molecule is vrms ≈ 500m/s.

a. What is the average energy of a N2 molecule under these conditions? Express your answer in J as well as eV.

b. At the same temperature and pressure, what is the average energy of a helium atom (M = 4.0u)?

c. Under these conditions, what is vrms for a helium atom?

d. Figure shows a plot of the logarithm of pressure (ln P) in a jar vs. time for an experiment in which gas leaks out of the jar through a tiny hole into a vacuum. The heavy solid line shown is for N2. Which of the two dotted lines (A or B) best approximates the behavior of helium under the same experimental conditions? Explain briefly

970_5.8.png

Fig. - Logarithm of pressure vs. time for gases leaking into a vaccum

Reference no: EM131552900

Questions Cloud

What is the mass of the balloon without the gas : A spherical balloon with negligible elastic force is filled at room temperature (20 ?C with enough helium gas that it just floats in the surrounding air.
How do you make sure that data is accessible when needed : Give examples of data that you consider: Hot, and Cold. How do you make sure that data is accessible when needed? Where do you store each temperature of data?
What is the magnitude of the force : Suppose you have two point-like charges q1 = 0.5C and q2 = 1C separated by 0.5m. What is the magnitude of the force on the smaller of the two charges?
Alternative dividend policies- long-run average return : In 2015 the Keenan Company paid dividends totaling $2,400,000 on net income of $14 million. What is Keenan's long-run average return on equity?
Which dotted lines best approximates the behavior of helium : What is the average energy of a N2 molecule under these conditions? Express your answer in J as well as eV.
Provide example to support approach new business owners take : Assignment: Business Start-Up Budget Challenge- Provide examples to support the approach new business owners should take when developing a start-up budget.
How you would determine if the plan was finalised : Describe how you would determine if the plan was finalised. Explain your approach to gaining approval to commence the project.
Would communication barriers increase or decrease : Would communication barriers increase or decrease? How would the proposed solutions impact clients? Would it increase their engagement level?
Evaluate the efficiency of the structure of ethical decision : Examine the manner in which Walmart's business philosophy has impacted its perception of being unethical towards supply and employee stakeholders.

Reviews

Write a Review

Chemistry Questions & Answers

  What is the origin of the high absorptivity absorptions

Match the five complexes grven below (by letter) with the proper spectral data in the chart below. Al1 of these complexes have low spin d6 configurations and display t'*ro d-d transitions (low absorptivity). Two additional absorptions with high mo..

  Determine what the potential of reduction

Using a table of standard reductions, determine what the potential of each reduction below would be versus the S.C.E. a. Ag+ (aq) + e - ? A(s) b. Ni2+(aq) + 2e- ? Ni (s)

  What is the molecular formula of l-dopa

What is the molecular formula of L-dopa? How many molecules are contained in each of the following number of moles? How many moles are contained in each number of grams of table sugar.

  Here are the enthalpy changes when one mole of hcl gas is

here are the enthalpy changes when one mole of hcl gas is added to various moles of water -16.608 kcal for 10 mol

  Design a system that measures the rate of metabolic heat

Design a system that measures the rate of metabolic heat production of a small warm-blooded animal. You may use either a direct or an indirect calorimetry technique.

  State and write the balanced complete ionic equations

Write the balanced complete ionic equations and net ionic equations for the reactions that occur when each of the following solutions are mixed. AgNO3(aq) and K2SO4(aq)

  List the elements in order of increasing atomic size

Arrange the following elements in order of INCREASING atomic size AND explain how you know the order

  Explain the relationship between the structures of esters

What is the relationship between the structures of esters and their odors. What is the relationship between the structures of esters and the carbonyl peaks from IR spectra

  Explain a human body contains 6 liters of blood

A human body contains 6 liters of blood. The hemoglobin content of blood is about 15.5g/100 mL of blood. The approximate hemoglobin molecular weight is 64,500g/mol. How many moles of hemoglobin are present in a typical adult?

  Styrene with sulfuric acid in water to go to completion

Question- How long did it take for the reaction of styrene with sulfuric acid in water to go to completion. All of the starting material was gone

  What is the new volume of the gas

The number of moles in 15.39 g of C2H6O (molar mass =46.1 g/mol) is ,You transfer a sample of gas at 17 degrees C from a volume of 4.71 L and 1.10 atm to a container at 37 degrees C.

  State correct the refractive index and boiling point

Correct the refractive index and boiling point to 20 degrees Celsius and 1 atmosphere and calculate the density of the unknown?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd