EBK PHYSICAL UNIVERSE
15th Edition
ISBN: 9780100255036
Author: KRAUSKOPF
Publisher: YUZU
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Chapter 12, Problem 5MC
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In each of the following, solve the problem stated. Express your answers in three significant figures. No unit is
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1. For the circuit shown, determine all the currents in each branch using Kirchhoff's Laws. (3 points)
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2. Compute for the total power dissipation of the circuit in previous item. (1 point)
3. Use Maxwell's Mesh to find Ix and VAB for the circuit shown. (3 points)
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4. Calculate all the currents in each branch using Maxwell's Mesh for the circuit shown. (3 points)
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If the mass of substance (1 kg), initial temperature (125˚C), the final temperature (175˚C) and the total volume of a closed container (1 m3) remains constant in two experiments, but one experiment is done with water ( ) and the other is done with nitrogen ( ). What is the difference in the change in pressure between water and nitrogen?
Using the simplified energy balance in Equation 1, suppose there is heat transfer of 40.00 J to a system, while the system does 10.00 J of work. Later, there is heat transfer of 25.00 J out of the system while 4.00 J of work is done on the system. What is the net change in internal energy of the system?
Chapter 12 Solutions
EBK PHYSICAL UNIVERSE
Ch. 12 - Prob. 1MCCh. 12 - Prob. 2MCCh. 12 - A substance of unknown composition is heated in an...Ch. 12 - Prob. 4MCCh. 12 - Prob. 5MCCh. 12 - Prob. 6MCCh. 12 - Prob. 7MCCh. 12 - Prob. 8MCCh. 12 - Prob. 9MCCh. 12 - Prob. 10MC
Ch. 12 - Prob. 11MCCh. 12 - Prob. 12MCCh. 12 - Prob. 13MCCh. 12 - Prob. 14MCCh. 12 - Prob. 15MCCh. 12 - Prob. 16MCCh. 12 - Prob. 17MCCh. 12 - Prob. 18MCCh. 12 - Prob. 19MCCh. 12 - When an electric current is passed through molten...Ch. 12 - The quantity actually stored in a storage battery...Ch. 12 - Prob. 22MCCh. 12 - Prob. 23MCCh. 12 - Prob. 24MCCh. 12 - Prob. 25MCCh. 12 - The formula mass of gaseous carbon dioxide, CO2,...Ch. 12 - Prob. 27MCCh. 12 - Prob. 28MCCh. 12 - Prob. 29MCCh. 12 - Prob. 30MCCh. 12 - Prob. 31MCCh. 12 - In round numbers the atomic mass of nitrogen is 14...Ch. 12 - Prob. 33MCCh. 12 - Prob. 34MCCh. 12 - Prob. 35MCCh. 12 - Prob. 1ECh. 12 - Prob. 2ECh. 12 - What role does air play in combustion?Ch. 12 - For a given amount of energy to be used for its...Ch. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - How many moles of aluminum are present in 5 mol of...Ch. 12 - How many moles of atomic oxygen are present in 1...Ch. 12 - How many moles of propane, C3H8, can be prepared...Ch. 12 - Prob. 10ECh. 12 - Prob. 11ECh. 12 - Prob. 12ECh. 12 - Find the mass of 10 mol of uranium, U. How many...Ch. 12 - Prob. 14ECh. 12 - Find the mass of 2 mol of iron(III) oxide, Fe2O3.Ch. 12 - Prob. 16ECh. 12 - How many moles of glucose are present in 500 kg of...Ch. 12 - How many moles of lead nitrate are present in 100...Ch. 12 - Prob. 19ECh. 12 - When potassium chlorate, KClO3, is heated, it...Ch. 12 - Prob. 21ECh. 12 - Prob. 22ECh. 12 - How much sulfur is needed to react with 200 g of...Ch. 12 - Prob. 24ECh. 12 - Prob. 25ECh. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Prob. 29ECh. 12 - Do ions in solution need activation energy to...Ch. 12 - Prob. 31ECh. 12 - Hydrogen peroxide, H2O2, decomposes into water and...Ch. 12 - What is the chief reason that reaction rates...Ch. 12 - Prob. 34ECh. 12 - Suggest three ways to increase the rate at which...Ch. 12 - Suggest three ways to increase the rate at which...Ch. 12 - Give an example of a reaction that is (a)...Ch. 12 - Under ordinary circumstances coal burns slowly,...Ch. 12 - Why is a reaction with a high activation energy...Ch. 12 - To what extent does the time needed for a strong...Ch. 12 - How common are reversible chemical reactions?Ch. 12 - Prob. 42ECh. 12 - Changing the pressure has no effect on the...Ch. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - Prob. 52ECh. 12 - When an electric current is passed through a...Ch. 12 - When an electric current is passed through a...Ch. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - What do you think happens when a charging current...Ch. 12 - Prob. 58E
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- • Nature of Resistance Temperature-Resistance Relationship Ohm's Law, Energy and Power Kirchhoff's Law • • Maxwell's Mesh Analysis 1. The steel of the third rail of a railway system has a resistivity of 21.4 μ-cm. If its cross-sectional area is 8.2 in², calculate the resistance per mile of rail, neglecting the effect of joints between sections. (1 point) 2. An incandescent lamp has a tungsten filament whose resistance is 96 at its operating temperature of 2900°C. Calculate the filament resistance when the lamp is disconnected from the electric source, under which condition its temperature is 24°C. (Use do = 0.0045 02/°C for tungsten) (1 point) 3. For the circuit shown, find the following: 50 V 602 10 V 702 a. the value of resistor R. (1 point) b. the equivalent resistance with respect to the 50-V source. (1 point) 4. For the circuit shown, determine all the currents in each branch using Kirchhoff's Laws. (3 points) A 5V 2 В -ний C 4 6 VT ww F E 5. Use Maxwell's Mesh to find I, and VAB…arrow_forwardFor items 8-9, refer to the problem below. Find all the currents flowing in every resistor, power dissipation in every resistor and the total power of the circuit shown at the right using... 8. Kirchhoff's Laws (5 pts) 9. Maxwell's Mesh Analysis (5 pts) A 8 V 10 V B + 20 Ω 3Ω 202 wwww C wwww 202 + 50 www 12 Varrow_forward• Nature of Resistance Temperature-Resistance Relationship Ohm's Law, Energy and Power Kirchhoff's Law • Maxwell's Mesh Analysis 1. A coil of copper wire (p = 10.37 2-cmil/ft) has a length of 600 ft. What is the length of an aluminum conductor (p 17 cmil/ft), if its cross-sectional area and resistance are the same as those of the copper coil? (Hint: Look for conversion of inches to mils and square inches to square foot. Include it in your solution.) (1 pt) 2. The copper field winding of an electric machine has a resistance of 46 at temperature of 22°C. What will be its resistance at 75°C? (Use do = 0.00427 /°C for copper) (1 pt) 3. The resistivity of a copper rod 50 ft long and 0.25 inch in diameter is 1.76 μ at 20°C. What is its resistance at - 20°C? (1 pt) 4. When two resistors A and B are connected in series, the total resistance is 36 2. When connected in parallel, the total resistance is 8 Q. What is the ratio of the resistance RA to resistance RB? Assume RA < RB. (1 pt) 5. The…arrow_forward
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