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 20, Problem 22SP
By how much does the internal energy of 50 g of oil (c = 0.32 cal/g • °C) change as the oil is cooled from 100 °C to 25 °C.
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Chapter 20 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 20 - 21. A 2.0 kg metal block (c = 0.137 cal/g • °C) is...Ch. 20 - 22. By how much does the internal energy of 50 g...Ch. 20 - 23. A gas does 100.0 J of work while receiving...Ch. 20 - 24. A 10.0-kg block of lead is heated from 23.0 °C...Ch. 20 - Prob. 25SPCh. 20 - 20.26 [I] It is given that 1.000 g of water...Ch. 20 - 20.27 [I] With the previous problem in mind, what...Ch. 20 - 28. Molecular oxygen having a mass of 10.0 g is in...Ch. 20 - 20.29 [II] Molecular hydrogen gas having a mass of...Ch. 20 - 20.30 [I] A sealed chamber containing 32.5 g of...
Ch. 20 - 20.31 [II] A gas at a pressure of Pa occupies in...Ch. 20 - 32. An ideal heat engine operates between 405 K...Ch. 20 - 20.33 [II] A 70-g metal block moving at 200 cm/s...Ch. 20 - 34. If a certain mass of water falls a distance of...Ch. 20 - 20.35 [II] How many joules of heat per hour are...Ch. 20 - 20.36 [II] A 100-g bullet is initially at 20 °C....Ch. 20 - 20.37 [II] To determine the specific heat of an...Ch. 20 - 38. How much external work is done by an ideal gas...Ch. 20 - 20.39 [I] As 3.0 liters of ideal gas at 27 °C is...Ch. 20 - 20.40 [I] An ideal gas expands adiabatically to...Ch. 20 - 20.41 [I] An ideal gas expands at a constant...Ch. 20 - Prob. 42SPCh. 20 - 20.43 [II] The specific heat of air at constant...Ch. 20 - 20.44 [II] Water is boiled at 100 °C and 1.0 atm....Ch. 20 - 20.45 [II] The temperature of 3.0 kg of krypton...Ch. 20 - Prob. 46SPCh. 20 - 47. Compute the work done in an isothermal...Ch. 20 - 20.48 [II] Five moles of neon gas at 2.00 atm and...Ch. 20 - 20.50 [II] Find the net work output per cycle for...Ch. 20 - Prob. 51SPCh. 20 - 20.52 [II] Figure 20-6 is the diagram for 25.0 g...
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- Beryllium has roughly one-half the specific heat of water (H2O). Rank the quantities of energy input required to produce the following changes from the largest to the smallest. In your ranking, note any cases of equality, (a) raising the temperature of 1 kg of H2O from 20C to 26C (b) raising the temperature of 2 kg of H2O from 20C to 23C (c) raising the temperature of 2 kg of H2O from 1C to 4C (d) raising the temperature of 2 kg of beryllium from 1C to 2C (e) raising the temperature of 2 kg of H2O from -1C to 2Carrow_forwardA certain ideal gas has a molar specific heat of Cv = 72R. A 2.00-mol sample of the gas always starts at pressure 1.00 105 Pa and temperature 300 K. For each of the following processes, determine (a) the final pressure, (b) the final volume, (c) the final temperature, (d) the change in internal energy of the gas, (e) the energy added to the gas by heat, and (f) the work done on the gas. (i) The gas is heated at constant pressure to 400 K. (ii) The gas is heated at constant volume to 400 K. (iii) The gas is compressed at constant temperature to 1.20 105 Pa. (iv) The gas is compressed adiabatically to 1.20 105 Pa.arrow_forwardWhen a gas undergoes an adiabatic expansion, which of the following statements is true? (a) The temperature of the gas does not change. (b) No work is done by the gas. (c) No energy is transferred to the gas by heat. (d) The internal energy of the gas does not change. (e) The pressure increases.arrow_forward
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- Equal masses of substance A at 10.0C and substance B at 90.0C are placed in a well-insulated container of negligible mass and allowed to come to equilibrium. If the equilibrium temperature is 75.0Q which substance has the larger specific heat? (a) substance A (b) substance B (c) The specific heats are identical. (d) The answer depends on the exact initial temperatures. (e) More information is required.arrow_forward(a) The inside of a hollow cylinder is maintained at a temperature Ta, and the outside is at a lower temperature, Tb (Fig. P19.45). The wall of the cylinder has a thermal conductivity k. Ignoring end effects, show that the rate of energy conduction from the inner surface to the outer surface in the radial direction is dQdt=2Lk[TaTbln(b/a)] Suggestions: The temperature gradient is dT/dr. A radial energy current passes through a concentric cylinder of area 2rL. (b) The passenger section of a jet airliner is in the shape of a cylindrical tube with a length of 35.0 m and an inner radius of 2.50 m. Its walls are lined with an insulating material 6.00 cm in thickness and having a thermal conductivity of 4.00 105 cal/s cm C. A heater must maintain the interior temperature at 25.0C while the outside temperature is 35.0C. What power must be supplied to the heater? Figure P19.45arrow_forward
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