Though Babatunde's family take oats for breakfast, her mum decides that today they would take tea. She prepares it and serves Babatunde in an aluminium cup of mass 120 g. Before serving the tea, the cup had a temperature of 20 °C. The 0.30 kg tea that is poured into the cup is at a temperature of 70 °C. Determine the final temperature when thermal equilibrium is attained between the tea and the cup, assuming no exchange of heat with the surounding? (Cen is 4190 J/kg. K, cal = 910 J/kg.K).
Though Babatunde's family take oats for breakfast, her mum decides that today they would take tea. She prepares it and serves Babatunde in an aluminium cup of mass 120 g. Before serving the tea, the cup had a temperature of 20 °C. The 0.30 kg tea that is poured into the cup is at a temperature of 70 °C. Determine the final temperature when thermal equilibrium is attained between the tea and the cup, assuming no exchange of heat with the surounding? (Cen is 4190 J/kg. K, cal = 910 J/kg.K).
Physics for Scientists and Engineers
10th Edition
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter19: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 43AP
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