The concentration of particles (assume neutral hydrogen atoms) in interstellar gas is 1.0 particle/cm3, and the average temperature is about 15K .
What is the pressure of the interstellar gas?
How does it compare to the best vacuum that can be achieved on Earth (10?15atm)?
| This is much smaller than the minimum value for the best vacuum. | |
| This is much greater than the minimum value for the best vacuum. | |
| This is equal to the minimum value for the best vacuum. |
The concentration of particles (assume neutral hydrogen atoms) in interstellar gas is 1.0 particle/cm3, and the...
Question 1: Interstellar space is not actually a perfect vacuum. Turns out there are clouds of atoms that roam these regions of space that are loosely held together by their combined gravity. Suppose there is a cloud with a number density of about 100 atoms/cm3 of neutral Hydrogen far away from any stars, bt with in the Milky Way galaxy. The temperature in this cloud is 100 KAsme each hydrogen atom is a hard sphere of radius 0.529 A (angstroms)....
Name TUTTI Chemistry 219 Homework Assignment #12 - Physical States of Matter & som Matter & Solutions Atoms Focused Approach, 2 ed. by libert, NOS Kead and outline Chapter 10.6.10.10 of Chemistrn Foster, & Bretz as directed by your instructor. Ideal Gases and the Gas Laws 1. How many moles of air must there be in a racing bicycle tire with a volume of 2.36 L if it has an internal pressure of 6.8 atm at 17.0°C? (10.69) 2. The...
please help me answer question 1 to 3,
thank you
Chapter 9, Solutions, Review & Extra Credit. 2 Points for each XC correct answer; 6 points total, max. Partial Credit given. Suggestions...work in teams [it will improve the learning experience] 1. Solutions-A solution forms when a solute (the smaller quantity) dissolves in a solvent (the larger quantity). In a solution, the particles of solute are evenly distributed in the solvent. A solute may be a gas, liquid or solid. A...
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Calculate the average density of the following astronomical body: Mars. Mars = kg/m3 Where does the value fit among those listed in the table below? Look up the density of a typical rock, such as granite in another source and compare the density of Mars to it. A proton, which is the nucleus of a hydrogen atom,...
Please answer as many as possible!! QUESTION 10 As the hydrogen ion [H +] concentration in a solution decreases, the hydroxide ion [OH -] concentration increases and the pH increases. decreases and the pH increases. increases and the pH decreases. decreases and the pH stays the same. decreases and the pH decreases. 1 points QUESTION 11 Environmental science is a theoretical approach in interpreting the environment. way to see the world in scientific terms. narrowly defined set of physical,...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of peptide chains a. Acetic acid b. Alanine O. ATP d. Gracil Report the charge on most aqueous aspartie acid molecules at pH-7. Report the approximate p values for the amino acid whose titration curve is shown below (note there may be more slots for answer than answers). A) Value 1 B) Value 2 c) Value 3 c) Value 4 The structure of a rare...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
t How are donaturation and varovalo airterent a. Rydrolysis resulte to the formation of water. Hydrolysis only takes place in the cytopa c. Hydrolysis results in breakingole d. Hydrolysis results in breaking ovalent bo How is folding related to function? • Folding and function are not related.. Proper folding results in propertune 0. Proper folding results in reduced un roper folding results in arratiefunct Molecules that a t folding are called a. Foldons which cellular environment is . Cytoplasm c....
1. Which of the following are the sites within the human body where carbon dioxide and oxygen are exchanged? A. Alveoli B. Arteries C. Synapses D. Venules 2. Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the hypothesis 3. Lithium has an atomic number of 3 and...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...