In lab, we noted that pressure (which should be the same for both gases) is a product of the strength of the collision times the frequency of collisions. The strength is proportional to mv, and the frequency is proportional to v. If we take the mass of hydrogen to be 4 kg and the speed to be 3 m/s (yes - these numbers are ridiculous for a molecule of gas - but the goal here is to focus on concepts and not get realistic numbers), and if we take the mass of oxygen to be 9kg, what is the speed of the oxygen?
1. speed of oxygen = m/s
2. What is the strength (mv) for the hydrogen? strength of hydrogen collision = kg m/s
3. What is the strength of the oxygen collisions? strength of the oxygen collisions= kg m/s
4. Which statement summarizes how hydrogen (a less massive element) can exert the same pressure as oxygen (a more massive element) at the same temperature, volume, and number of molecules?
Hydrogen collisions with the walls are more frequent but less strong compared to oxygen.
Hydrogen collisions with the walls are equally frequent and equally strong compared to oxygen.
Hydrogen collisions with the walls are less frequent but more strong compared to oxygen.
In lab, we noted that pressure (which should be the same for both gases) is a...
This problem will review one of the questions in the ideal gas, but with numbers: You have one container of hydrogen, and another container of oxygen. The number of molecules, temperature and volume are the same for both gases. Oxygen is, however, heavier than hydrogen. How does the average kinetic energy of hydrogen compare to oxygen? Hydrogen has LARGER average kinetic energy than oxygen. Hydrogen has THE SAME average kinetic energy as oxygen. Hydrogen has LESS average kinetic energy than...
Equal masses of CO2 and CH4 gas are placed in identical 1.00 L containers, both at the same temperature. Which of the following is true? X. Both gases exert the same pressure. Y. Molecules of CH4 make more frequent collisions with the walls of the container. Z. Both gases have the same average molecular speed. answer can be more than one
+ Conservation of Momentum Ph X Phy 1010-F19-Chapter 6-PH X webassignunet/web/Student/Assignment-Responses/submthdep 219474888tagssautosave C dimension. The system consists of the two objects and the only forces affecting the motion are the internal forces betwoen them during collision. ANALYZE (A) Determine the velocity after collision Because no external force acts, the colligion does not change the total momentum of the system of two particles. We set the total momentum before collision to the total momentum afterward: myVsm (m + m)v The final...
i got 1.4 but it was incorrect and i am not sure why. Please help! READING 2 Materials fracture when the force per unit area, called STRESS, exceeds a critical value. In general, the critical stress depends on the direction as well as the magnitude of the force. For example, bones break differently when subjected to torsional (twisting) stress than when subjected to compressional (or squeezing) stress. Let us consider compressional stress. Wet human bone for 20-39 year olds has...
some context Problem 3: Use simple kinetic theory of gases discussed in section 1.3.2 as well as Fourer's law of condustion to prove: 2 R373 D11 = 3113/202pm Dal We were unable to transcribe this imageof a nes. the xed the led negligible The following assumptions about the structure of the cases are made in order to investigate the statistical rules of the random motion of the molecules: The size of the gas molecules is negligible compared with the distance...
PART A: An electron moves at 3.00×106 m/s through a region in which there is a magnetic field of unspecified direction and magnitude 7.50×10−2 T . A1: An electron moves at 3.00×106 m/s through a region in which there is a magnetic field of unspecified direction and magnitude 7.50×10−2 T . A2: What is the smallest possible magnitude of the force on the electron due to the magnetic field? Express your answer in newtons to the nearest integer. A3: If...
Problem 4: Read Appendix 2 below (Sec. 1.4.1 of Kasap) and then solve. A metallic back contact is applied to the CdTe solar cell of Problem 1 using a set up similar to that described in Figure 1.74 (b) on the next page. To form the metallic back contact, two evaporation sources are used, Cu and Au. An initial 3 nm layer of Cu is deposited first and then 30 nm of Au is deposited. After these depositions, the sample...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
the sheer speed with which end-stage liver failure can consume a patient is what makes the disease so devastating.1,2 Unfortunately, Ms. S.’s family had never been informed about that reality. When they brought her in for a mere urinary tract infection, they were shocked that it took only days for her heart, lungs, and immune system to fail alongside her liver. Her family waited in hopeful anticipation for Ms. S.’s condition to take a turn for the better, and therefore...
the sheer speed with which end-stage liver failure can consume a patient is what makes the disease so devastating.1,2 Unfortunately, Ms. S.’s family had never been informed about that reality. When they brought her in for a mere urinary tract infection, they were shocked that it took only days for her heart, lungs, and immune system to fail alongside her liver. Her family waited in hopeful anticipation for Ms. S.’s condition to take a turn for the better, and therefore...