Physics for Scientists and Engineers With Modern Physics
9th Edition
ISBN: 9781133953982
Author: SERWAY, Raymond A./
Publisher: Cengage Learning
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Chapter 20, Problem 2OQ
To determine
What kind of material the poker should be made of for safety and comfort purpose.
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A poker is a stiff, nonflammable rod used to push burning logs around in a fireplace. For safety and comfort of use, should the poker be made from a material with
(A) high specific heat and high thermal conductivity,
(B) low specific heat and low thermal conductivity,
(C) low specific heat and high thermal conductivity, or
(D) high specific heat and low thermal conductivity?
Please explain the correct answer. Thank you.
(a) Two 54 g ice cubes are dropped into 450 g of water in a thermally insulated container. If the water is initially at 17°C, and the ice comes directly from a freezer at -11°C, what is the final temperature at thermal equilibrium? (b) What is the final temperature if only one ice cube is used? The specific heat of water is 4186 J/kg·K. The specific heat of ice is 2220 J/kg·K. The latent heat of fusion is 333 kJ/kg.
(a) Two 33 g ice cubes are dropped into 180 g of water in a thermally insulated container. If the water is initially at 27°C, and the ice comes directly from a
freezer at -21°C, what is the final temperature at thermal equilibrium? (b) What is the final temperature if only one ice cube is used? The specific heat of
water is 4186 J/kg-K. The specific heat of ice is 2220 J/kg•K. The latent heat of fusion is 333 kJ/kg.
(a) Number
Units
(b) Number
Units
Chapter 20 Solutions
Physics for Scientists and Engineers With Modern Physics
Ch. 20.2 - Prob. 20.1QQCh. 20.3 - Prob. 20.2QQCh. 20.6 - Prob. 20.3QQCh. 20.6 - Characterize the paths in Figure 19.12 as...Ch. 20.7 - Prob. 20.5QQCh. 20 - Prob. 1OQCh. 20 - Prob. 2OQCh. 20 - Prob. 3OQCh. 20 - Prob. 4OQCh. 20 - Prob. 5OQ
Ch. 20 - Prob. 6OQCh. 20 - Prob. 7OQCh. 20 - Prob. 8OQCh. 20 - Prob. 9OQCh. 20 - Prob. 10OQCh. 20 - Prob. 11OQCh. 20 - Prob. 12OQCh. 20 - Prob. 13OQCh. 20 - Prob. 14OQCh. 20 - Prob. 15OQCh. 20 - Prob. 1CQCh. 20 - Prob. 2CQCh. 20 - Prob. 3CQCh. 20 - Prob. 4CQCh. 20 - Prob. 5CQCh. 20 - Prob. 6CQCh. 20 - Prob. 7CQCh. 20 - Prob. 8CQCh. 20 - Prob. 9CQCh. 20 - Prob. 10CQCh. 20 - Pioneers stored fruits and vegetables in...Ch. 20 - Prob. 12CQCh. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - The highest waterfall in the world is the Salto...Ch. 20 - Prob. 5PCh. 20 - The temperature of a silver bar rises by 10.0C...Ch. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - If water with a mass mk at temperature Tk is...Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - How much energy is required to change a 40.0-g ice...Ch. 20 - Prob. 19PCh. 20 - Prob. 20PCh. 20 - Prob. 22PCh. 20 - In an insulated vessel, 250 g of ice at 0C is...Ch. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - One mole of an ideal gas is warmed slowly so that...Ch. 20 - Prob. 28PCh. 20 - Prob. 29PCh. 20 - A gas is taken through the cyclic process...Ch. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - A thermodynamic system undergoes a process in...Ch. 20 - Prob. 34PCh. 20 - A 2.00-mol sample of helium gas initially at 300...Ch. 20 - (a) How much work is done on the steam when 1.00...Ch. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - A 1.00-kg block of aluminum is warmed at...Ch. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - A concrete slab is 12.0 cm thick and has an area...Ch. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48PCh. 20 - Two lightbulbs have cylindrical filaments much...Ch. 20 - Prob. 50PCh. 20 - Prob. 51PCh. 20 - Prob. 52PCh. 20 - (a) Calculate the R-value of a thermal window made...Ch. 20 - Prob. 54PCh. 20 - Prob. 55PCh. 20 - Prob. 56PCh. 20 - Prob. 57PCh. 20 - Prob. 58APCh. 20 - Gas in a container is at a pressure of 1.50 atm...Ch. 20 - Prob. 60APCh. 20 - Prob. 61APCh. 20 - Prob. 62APCh. 20 - Prob. 63APCh. 20 - Prob. 64APCh. 20 - Review. Following a collision between a large...Ch. 20 - An ice-cube tray is filled with 75.0 g of water....Ch. 20 - Prob. 67APCh. 20 - Prob. 68APCh. 20 - An iron plate is held against an iron wheel so...Ch. 20 - Prob. 70APCh. 20 - Prob. 71APCh. 20 - One mole of an ideal gas is contained in a...Ch. 20 - Prob. 73APCh. 20 - Prob. 74APCh. 20 - Prob. 75APCh. 20 - Prob. 76APCh. 20 - Prob. 77APCh. 20 - Prob. 78APCh. 20 - Prob. 79APCh. 20 - Prob. 80APCh. 20 - Prob. 81CPCh. 20 - Prob. 82CPCh. 20 - Prob. 83CPCh. 20 - Prob. 84CP
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