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You have scored a great internship with NASA, working on planning for an upcoming mission to Mars. The transfer orbit to Mars will last for several months and will require reclamation of the oxygen in the carbon dioxide exhaled by the crew. In one method of reclamation, 1.00 mol of carbon dioxide produces 1.00 mol of oxygen and 1.00 mol of methane as a byproduct. The methane is stored in a tank under pressure and is available to control the orientation of the spacecraft by controlled venting. A single astronaut exhales 1.09 kg of carbon dioxide each day. If the methane generated in the respiration recycling of three astronauts during one week of flight is stored in an originally empty 150-L tank at −45.0°C, what is the final pressure in the tank?
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Chapter 18 Solutions
Physics for Scientists and Engineers
- The force P of magnitude 50 KN is acting at 215° from the x-axis. Find the components of P in u 157° from x, and v negative 69°from x. (Draw the Figure)arrow_forwardUsing AMM, solve for: a. Y. (mm) b. ӨЕ (гad) P= 128 kN E = 200 GPa, I= 3.125x10° mm* P (kN) kN/m 75 60 kN/m 2m 1m 3m 3m 90 kN.m A B Earrow_forwardA NASA spacecraft measures the rate R at which atmospheric pressure on Mars decreases with altitude. The result at a certain altitude is: R= 0.0915 kPa*km−1 Convert R to kJ*m−4 .arrow_forward
- The unit cell of platinum has a length of 392.0 pm along each side. Use this length (and the fact that Pt has a face-centered unit cell) to calculate the density of platinum metal in kg/m3 (Hint: you will need the atomic mass of platinum and Avogadro's number).arrow_forwardThe force P of magnitude 50 kN is acting at 215° from the x-axis. Find the components of P in v 157° from x, and u negative 69° .from x Pv=67.44 kN & Pu=58.95 kN O Pv=58.95 kN & Pu=67.44 kN Oarrow_forwardAtmospheric pressure on Earth at its surface is 101 KPa (101 kilopascals or 101,000 N/m2). Which of these statements is true? If we pump out the gas in a closed container leaving only 1 billionth of the original gas there will still be more than 1010 (10 billion) atoms per cm3 in the container. If we pump out the gas in a closed container leaving only 1 billionth of the original gas there will be fewer than 100 atoms per m3 in the container. When we reduce the pressure in the container while keeping the temperature constant, the number of atoms per m3 must stay constant. At 1 atmosphere, the number of atoms/m3 in air at room temperature is about 109, one billion atoms.arrow_forward
- A tank containing water is pressurized with air to a pressure of 30 psig. With the pressure in the tank as the driving force, the tank is feeding water at a rate of 15 GPM to another tank at atmospheric pressure through a 1.5 inch line. What would the pressure in the tank need to be increased to in order to increase the flow to 30 GPM?arrow_forwardDetermine the dimensions in the vernier caliper illustrations in Figures C-66a and C-66b. Figure C-66a 2 3 2,3,4,5,6 1/1000" 0 Figure C-66b Vernier reading for C-66a. 001 10 Vernier reading for C-66b. 5 1 2 3 4 5 6 7 8 9 1 10 001 01 20 INTERNAL 20 5 8,9,2, 1, 2, 3, 4, 5, 6, 12 2 :N 10 30 56789 15 20 25 1 2 3 30 EXTERNAL 50 1 2 3 4 5 3arrow_forwardAn underground tunnel has two openings, with one opening a few meters higher than the other. If air moves past the higher opening at a greater speed than it moves past the lower opening, what happens inside the tunnel?arrow_forward
- The most dangerous particles in polluted air are those with diameters less than 2.5 μm because they can penetrate deeply into the lungs. A 15-cm-tall closed container holds a sample of polluted air containing many spherical particles with a diameter of 2.5 μm and a mass of 2.6 x 10-14 kg. How long does it take for all of the particles to settle to the bottom of the container?arrow_forwardOn the surface of a hypothetical planet X, the atmospheric pressure is 4.25 x 106 Pa, and the temperature is 707 K. On the earth's surface the atmospheric pressure is 1.00 x 105 Pa, while the surface temperature can reach 320 K. These data imply that the planet X has a "thicker" atmosphere at its surface than does the earth, which means that the number of molecules per unit volume (N/V) is greater on the surface of planet X than on the earth. Find the ratio (N/V)X/(N/V)Earth.arrow_forwardAtmospheric pressure on Earth at its surface is 101 KPa (101 kilopascals or 101,000 N/m2). Which of these statements is true. If we pump out the gas in a closed container leaving only 1 billionth of the original gas, there will only be about 1000 atoms left in the container. The number of atoms or molecules in the container depends on what the gas is composed of. If we pump out the gas in a closed container leaving only 1 millionth of the original gas there will still be more than 1013 (10,000 billion) atoms per cm3 in the container. The number of atoms or molecules in the container does not depend on temperature.arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
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