Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 16, Problem 41SP
One method for estimating the temperature at the center of the Sun is based on the
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What is the surface temperature of a star that has a radius of 7.00 x 108 m and emits power at a rate of 5.00 x 1026 watts? Assume that the star is an ideal blackbody and that the temperature of the surrounding region of outer space is 0.000 K. (Hint: σ = 5.67 x 10-8 watts/m2K4 ,and the surface area of a sphere is A = 4πR2.)
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Chapter 16 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 16 - 19. An ideal gas is in a chamber at a pressure of...Ch. 16 - 20. Given that one mole of hydrogen...Ch. 16 - 21. A sealed tank having a volume of 25.0 × 10−3...Ch. 16 - 22. If the absolute pressure in the chamber in the...Ch. 16 - 23. A 50.0-liter cylinder is open to the...Ch. 16 - 24. A 6.00-m3 cylinder filled with oxygen at an...Ch. 16 - 25. Imagine a cylinder containing 0.500 m3 of gas...Ch. 16 - Prob. 26SPCh. 16 - 27. A given mass of an ideal gas occupies a volume...Ch. 16 - 28. A mass of ideal gas occupies 38 mL at 20 °C....
Ch. 16 - 29. On a day when atmospheric pressure is 75.83...Ch. 16 - 30. A tank of ideal gas is sealed off at 20 °C and...Ch. 16 - 31. Given 1000 mL of helium at 15 °C and 763 mmHg,...Ch. 16 - 16.32 [II] One kilomole of ideal gas occupies 22.4...Ch. 16 - 16.33 [II] Air is trapped in the sealed lower end...Ch. 16 - Prob. 34SPCh. 16 - 36. A 5000-cm3 tank contains an ideal gas (M = 40...Ch. 16 - 37. The pressure of air in a reasonably good...Ch. 16 - 38. What volume will 1.216 g of SO2 gas (M = 64.1...Ch. 16 - Prob. 39SPCh. 16 - 40. A 30-mL tube contains 0.25 g of water vapor (M...Ch. 16 - 41. One method for estimating the temperature at...Ch. 16 - 16.42 [II] A 500-mL sealed flask contains nitrogen...Ch. 16 - 16.43 [II] As shown in Fig. 16-2, two flasks are...Ch. 16 - 16.44 [II] An air bubble of volume is released...Ch. 16 - 16.45 [II] A cylindrical diving bell (a vertical...
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- For hydrogen gas. H2, tables give values for the parameters of eqn 7a of a= 2728J K-1 mol-1, b=3.26 x 10-3 J K-2 mol-1, and c = 0.50 J K2 mol-1. Calculate the value of the constantpressure heat capacity of hydrogen at 25 °c.arrow_forwardThe surface of the sun has a temperature o about 5800K.The radius of the sun is 6.96×10^8 m.Calculate the total energy radiated by the sun each second .Assume the emissivity of the sun is 0.986.arrow_forwardEstimate the temperature that the surface of the sun would have to be in order to find equal populations of neutral hydrogen atoms and protons at the surface.arrow_forward
- The giant star Betelgeuse emits radiant energy at a rate 10^4 times greater than the Sun, where as its surface temperature is only half (2900 K) that of our Sun. Estimate the radius of the Betelgeuse, assuming e=1 for both stars. The Sun’s radius is rs = 7 x 10^8 m.arrow_forwardThe escape speed from the moon's surface is about 2380 m/s, and its atmospheric temperature ranges between 100 and 400 K. Take as an example an atmosphere of atomic hydrogen at the average temperature of 250 K to show why the moon would have no light elements in its atmosphere. You will need to employ a numerical integration. Answer:P(v>2380 m/s)=43.2%arrow_forwardThe number density of gas atoms at a certain location in the space above our planet is about 2.90 ✕ 1011 m−3, and the pressure is 2.40 ✕ 10−10 N/m2 in this space. What is the temperature (in °C) there? A high-pressure gas cylinder contains 60.0 L of toxic gas at a pressure of 1.43 ✕ 107 N/m2 and a temperature of 22.0°C. Its valve leaks after the cylinder is dropped. The cylinder is cooled to dry ice temperature (−78.5°C) to reduce the leak rate and pressure so that it can be safely repaired. What is the final pressure in the tank in pascals, assuming a negligible amount of gas leaks while being cooled and that there is no phase change?arrow_forward
- A giant, hot (323oC) sphere of copper is placed into the middle of Space where it radiates heat as a black body radiator. The sphere has a radius of 0.50 meters and a mass of 4660 kg. Assuming copper has emissity of 0.8, how long will it take for the giant ball of carbon to drop 2oC (Csp=0.385 J/g*C =385 kJ/Kg*C)arrow_forwardEstimate the average thermal energy of a helium atom at (i) room temperature (36 °C), (ii) the temperature on the surface of the Sun (6000 K), (iii) the temperature of 10 million kelvin (the typical core temperature in the case of a star).arrow_forwardWhat is the average kinetic energy in joules of hydrogen atoms on the 5500 °C surface of the Sun?arrow_forward
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