A 20-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 94°C is dropped into the cup, and the final equilibrium temperature is 12°C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 x 105 J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg · °C, respectively.) kg Need Help? Read It Master It

A 20-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 94°C is dropped into the cup, and the final equilibrium temperature is 12°C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 x 105 J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg · °C, respectively.) kg Need Help? Read It Master It

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)...

See similar textbooks

Similar questions

When the indoor temperature of a house is 25°C and the outdoor temperature is -8°C, the inside and outside surfaces of the glass are measured to be 21.3°C and 17.3°C. If the glass has an area of 3.16 m2 and a thickness of 6.14 mm, what is the rate of heat (in W) lost though the window? {kglass = 0.78 W/m∙K}
314.0 kg copper bar is put into a smelter for melting. The initial temperature of the copper is 299.0 K. How much heat in kilojoules must the smelter produce to completely melt the copper bar? (The specific heat for copper is 386 J/kg•K, the heat of fusion for copper is 205 kJ/kg, and its melting point is 1357 K.)
When resting, a person has a metabolic rate of about 3.88 x 105 joules per hour. The person is submerged neck-deep into a tub containing 4.62 x 103 kg of water at 26.9 °C. If the heat from the person goes only into the water, find the water temperature in degrees Celsius after half an hour.
A copper pot is on the fire and contains 1.5 L of boiling water. The pan dries in 12 min. What are, under these conditions, the temperatures of the two sides of the bottom of the pan, which is 27 cm in diameter and 0.8 cm in thickness? (I need a detailed description please)
You happen to come across a piece of metal that has a density of p 8.12 g/cm3 when the temperature is To = 42.5 °C. If the metal is cooled to a temperature of T1 0.00 °C, does the density change? Yes, the density will decrease since the volume changes. Yes, since the metal contracts and the mass is constant, the density will increase. No, because as the volume changes so does the mass. No, density does not depend on temperature. Calculate the density of the piece of metal at this temperature, P1. The coefficient of volume expansion for this piece of metal is B = 7.62 x 10-5 1/°C. -0.0263 Pi = g/cm3 Incorrect
A 6.0 kg zinc cannonball has been sitting in the desert sun all day. Its temperature is 49°C. Night falls on the desert, the wolf howls at the moon, and the temperature falls to a chilling -20°C. How much heat will the cannonball release as it cools to air temperature? (The specific heat of zinc is 390 J-kg^-1°C^-1). * O 1.6 x 10^5 J O 3.2 x 1015 J O 1700 J O 47000 J
A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m = 2.5 kg. The radius of the pot bottom is R = 8.0 cm and the thickness is L = 1.0 mm. What is the temperature of the heating element in contact with the pot? TE = Number i Units
At 19.5°C, the radius of a solid aluminum sphere is 8.00 cm. (a) At what temperature will the volume of the sphere have increased by 2.50%? °C (b) What is the increase in the sphere's radius if it is heated to 300°C? Assume a = 22.2 x 10-6 K-1 and B = 66.6 × 10-6 K-1. 5 x cm
The figure below shows a graph of v, versus t for the motion of a motorcyclist as he starts from rest and moves along the road in a straight line. v. (m/s) 10 8. 6 2 t (s) 12 4. 8 10 (a) Find the average acceleration for the time interval t = 0 to t = 12.0 s. 0.3 V m/s2 (b) Estimate the time at which the acceleration has its greatest positive value. 3 What is the value of the acceleration at that instant? 0.2 Your response is off by a multiple of ten. m/s2 (c) When is the acceleration zero? Acceleration is zero whent = 0 The correct answer is not zero. s and when t > 0 The correct answer is not zero. s.
A person tries to cool down her bath water by adding 5.0 Kg of ice at 0°C to 75.0 Kg of water at 70°C. What is the final temperature of the water? (Lf = 333 KJ/Kg & cH2O =4186 J/Kg°C)
A blacksmith cools a chunk of iron initially at 650 degrees celsius by trickling water from a jug over it. The water in the jug has a temperature of 15 degrees celsius. All of the water boils away and the iron chunk cools down 120 degrees celsius. If, in total, he poured 0.90 kg of water over the iron, what is the mass of this chunk of iron?
A bar of pure gold is heated to 105.0 °C. The specific heat capacity of gold is 1.29x10² J/1kg~°C). The gold is placed into 600.0 mL of ethyl alcohol initially at a temperature of 35.0 °C. The final temperature of the mixture is 37.0 °C. What is the mass of the gold?