Though Babatunde's family take oats for breakfast, her mum decides that today they wouldtake tea. She prepares it and serves Babatunde in an aluminium cup of mass 120 g. Beforeserving the tea, the cup had a temperature of 20 °C. The 0.30 kg tea that is poured into the cupis at a temperature of 70 °C. Determine the final temperature when thermal equilibrium isattained between the tea and the cup, assuming no exchange of heut with the surrounding?

Given Mass of aluminium m1=0.12kg Temperature of cup T1=200 C Mass of tea m2=0.3 kg Temperature at…

Answered: Though Babatunde's family take oats for…

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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The world's deepest gold mine, which is located in South Africa, is over 5.1 km deep. Every day, the mine transfers enough energy by heat to the mine's cooling systems to melt 348114 kg of ice at 0.0 degrees Celsius. If the energy output from the mine is increased by 9.6 percent, to what final temperature will the 348114 kg of ice-cold water be heated? Latent Heat of fusion of Ice-3.33 × 105 J/kg Specific heat capacity of Water = 4186J/(kg. °C)
A 155-g aluminum cylinder is removed from a liquid nitrogenbath, where it has been cooled to -196 °C. The cylinder is immediately placed in an insulated cup containing 80.0 g of water at15.0 °C. What is the equilibrium temperature of this system? Ifyour answer is 0 °C, determine the amount of water that has frozen.The average specific heat of aluminum over this temperature rangeis 653 J>1kg # K2
During a marathon race David uses energy at a rate of 292 W. What volume of body fluid does he lose in the 5.5 hours of the race if 17.0% of the energy goes to the muscle tissue and the rest is used in removing the perspiration from the body. The latent heat of vaporization is 2.41*10^6 J/kg at 37.0°C and density of water is 1000 kg/m3. Answer in cubic meters.
A) If the final temperature is 22.1°C, what is the specific heat of the object? (2 sig fig) B) Referring to the table, identify the material in the object
An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed into the water. One is a 48.5-g piece of copper at 80°C. The other has a mass of 142 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. (a) Determine the specific heat of the unknown sample. J/kg · °C (b) Using the data in this table, can you make a positive identification of the unknown material? Can you identify a possible material? The unknown material might bi v ---Select--- aluminum beryllium (c) Explain your answers for pa copper iron silver
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A 1.50 kg block of ice initially at a temperature of 0 °C is placed inside an apparatus that allows 150 kJ of heat to flow into the ice. What mass of ice melts as a result? O 0.45 kg O 0.75 kg O 1.33 kg O 2.23 kg O 1.00 kg
Two 39.5-g ice cubes initially at 0°C are added to 460 g of water at 22.0°C. Assuming this system is insulated and ignoring heat transfer with the glass, what is the equilibrium temperature of the mixture? °C
A crane is brought for the construction of the bridge over the running water and the structural elements of the bridge are placed with a crane. The iron barrier weighing 10 tons was heat treated and its temperature was raised up to 97 °C before being placed. An accident occurred during the hoist and the iron barrier fell into water at 7° C. When the iron barrier is removed from the water after a long time, it has been observed that its temperature is the same as the water. Calculate the entropy change in the iron barrier, the entropy change in water, and the entropy generation caused by these changes. For iron barrier, you can accept specific heat capacity as 0.45 kj / kg.K.
An aluminum cup with mass 0.56 kg holds 0.96 kg of water. Both the cup and the water have a temperature of 10.°C. If a 0.76-kg piece of copper at 53.°C is added to the cup, what is the final equilibrium temperature in °C? You may assume that the cup, water, and copper are well insulated from anything else.
A heavy pot made of copper has a mass of 2.07 kg (including the lid) and is heated in an oven to a temperature of 155 °C. You pour 0.10 kg of water at 25.6 °C into the pot and quickly close the lid so that no steam can escape. We assume that no heat is lost to the surrounding. For copper, Ccopper 390 J/(kg.K) = For water, Cwater = 4190 J/(kg.K), Lv = 2256 kJ/kg, Lƒ = 333 kJ/kg. What is the final mass of steam in the pot? g
You are given a frozen sample of an unknown substance. The sample has a temperature of 4K and a mass of 10g. You put the frozen sample in a closed container of volume 10L and heat it slowly to 120degC. At this point, the complete sample has evaporated and is in the gas phase. You measure a pressure of 117kPa inside the container. Which substance is it?

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