The value of specific heat for copper is 390 J/kg C°, for aluminun is 900 J/kg C°, and for water is 4186 J/kg C°. Part A What will be the equilibrium temperature when a 235 g block of copper at 255 °C is placed in a 145 g aluminum calorimeter cup containing 825 g of water at 13.0 °C?

The value of specific heat for copper is 390 J/kg C°, for aluminun is 900 J/kg C°, and for water is 4186 J/kg C°. Part A What will be the equilibrium temperature when a 235 g block of copper at 255 °C is placed in a 145 g aluminum calorimeter cup containing 825 g of water at 13.0 °C?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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QUESTION 4 In an isolated system, a 0.255 kg block of gold at 85.0 °C is fully immersed in 0.155 kg of water at 25.0 °C. (specific heat capacity of water, Cwater = 4186 J/kg °C, specific heat capacity of gold, cgald= 129 J/kg °C). Find i. the equilibrium temperature. ii. the energy lost by the gold.
An insulated beaker with negligible mass contains liquid water with a mass of 0.330 kg and a temperature of 60.5 °C. Part A How much ice at a temperature of -18.5 °C must be dropped into the water so that the final temperature of the system will be 40.0 °C? Take the specific heat of liquid water to be 4190 J/kg K, the specific heat of ice to be 2100 J/kg K, and the heat of fusion for water to be 3.34x105 J/kg.
Part A Helium gas with a volume of 2.60 L, under a pressure of 0.190 atm and at a temperature of 43.0° C, is warmed until both pressure and volume are doubled. What is the final temperature? Express your answer in degrees Celsius. ? T = 172 °C Submit Previous Answers Request Answer Previous Answers X Incorrect; Try Again; 5 attempts remaining Part B How many grams of helium are there? The molar mass of helium is 4.00 g/mol. Express your answer in grams. V ΑΣφ m =
An insulated beaker with negligible mass contains liquid water with a mass of 0.245 kg and a temperature of 66.4 °C. Part A How much ice at a temperature of -17.8 °C must be dropped into the water so that the final temperature of the system will be 34.0°C? Take the specific heat of liquid water to be 4190 J/kg K, the specific heat of ice to be 2100 J/kg-K, and the heat of fusion for water to be 3.34x105 J/kg. View Available Hint(s) mice = [ΨΕΙ ΑΣΦ 5 kg
When a 270-g piece of iron at 160 °C is placed in a 95-g aluminum calorimeter cup containing 250 g of liquid at 10° C, the final temperature is observed to be 35 °C. The value of specific heat for iron is 450 J/kg·C°, and for aluminum is 900 J/kg · C°. Part A Determine the specific heat of the liquid. Express your answer using two significant figures. VO AE ? J C = kg-C° Submit Request Answer
One end of a 70-cm-long copper rod with a diameter of 2.0 cm is kept at 420 °C, and the other is immersed in water at 24 °C. Part A Calculate the heat conduction rate along the rod. Express your answer to two significant figures and include the appropriate units. t μA = Value Submit Units and Previous Answers Request Answer ?
A 40-cm-long icicle hangs from the eave of a house on a day when the temperature is -2.0°C. T Part A By how many millimeters does the icicle shrink if a bitterly cold wind drops the temperature to -20 °C? Express your answer with the appropriate units. AL= Submit xa μA Value 77 X.10n Units Previous Answers Request Answer ?
A steel rod (p=7860 kg/m³) has a length of 3.75 m. It is bolted at both ends between immobile supports. Initially there is no tension in the rod, because the rod just fits between the supports. Find the tension that develops when the rod loses 3190 J of heat. Number ! Units N
A physicist uses a cylindrical metal can 0.350 m high and 0.090 m in diameter to store liquid helium at 4.22 K; at that temperature the heat of vaporization of helium is 2.09 x 104 J/kg. Completely surrounding the metal can are walls maintained at the temperature of liquid nitrogen, 77.3 K, with vacuum between the can and the surrounding walls. Part A How much helium is lost per hour? The emissivity of the metal can is 0.200. The only heat transfer between the metal can and the surrounding walls is by radiation. Express your answer in gram per hour. Am At Submit ΠΕ ΑΣΦΑΦ Request Answer PZ ? Review | Constants g/h
A 850 g aluminum pan is removed from the stove and plunged into a sink filled with 11.0 L of water at 20.0 °C. The water temperature quickly rises to 24.0 °C. Part A What was the initial temperature of the pan in °C? Express your answer with the appropriate units. Tinitial Submit Part B 11 Tinitial VO V—| ΑΣΦ Request Answer What was the initial temperature of the pan in °F? Express your answer with the appropriate units. VE ΑΣΦ C Ć SALA CO — ? ? °F °C
The basal metabolic rate is the rate at which energy is produced in the body when a person is at rest. A 68 kg (150 lb) person of height 1.83 m (6.0 ft) would have a body surface area of approximately 1.9 m². Part A What is the net amount of heat this person could radiate per second into a room at 19.0° C (about 66.2°F) if his skin's surface temperature is 31.0° C? (At such temperatures, nearly all the heat is infrared radiation, for which the body's emissivity is 1.0, regardless of the amount of pigment.) Express your answer in watts. ΑΣφ ? Hnet W %D Submit Request Answer Part B Complete previous part(s)