A student measures the following data in a calorimetry experiment designed to determine the specific heat of aluminum. (Do not assume atmospheric pressure.) Initial temperature of water and calorimeter: Mass of water: Mass of calorimeter: Specific heat of calorimeter: Initial temperature of aluminum: Mass of aluminum: Final temperature of mixture: Use these data to determine the specific heat of aluminum. J/kg- °C Need Help? Read It 70°C 0.400 kg 0.040 kg 0.63 kJ/kg °C 26.6°C 0.200 kg 66.2°C

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A copper sample (ccu = 387 J/kg•K) of mass mẹ = 75 g and temperature Te = 312ºC is dropped into a glass beaker that contains a mass of water me = 220 g (cw = 4190 J/kg•K). %3D The initial temperature of the water and the beaker is Tw,b = 12.0°C. What is the final temperature of the copper, beaker, and water? * The heat capacity (the specific heat times the mass) of the beaker is Cb' = 190 J/K.

The heat conducted through a bar depends on which of the following? A. The coefficient of linear expansionB. The thermal conductivityC. The specific heat capacityD. The length of the barE. The cross-sectional area of the bar     A, C, and D   A, B, and D   B, C, D, and E   B, D, and E   C, D, and E

0.4 kg water is at room temperature 23 degrees in an aluminum container. An unknown metal with 0.5 kg mass is placed inside the water raising its temperature to 40 degrees. A)What is the specific heat of the unknown metal. B) Would the equilibrium temperature greater, less or the same if the system was not properly isolated.

2.12 A mass of 5 kg of water is contained in a piston-cylinder device at 125 kPa. Initially, 2 kg of the water is in the liquid phàse and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300 kPa. Heat transfer continues until the total volume increases by 20%. a) Determine the initial and final temperatures. b) Calculate the mass of liquid water when the piston first starts moving. c) Calculate the work done during this process. d) Show the process on a P-V diagram

Question 1 Read the question and type your response in the box provided. Your response will be saved automatically. Temperature (°C) A' B CA co B' Heat Added (Joules) D' ********* E' OE D www. Substance Y · Substance X 140 BE The graph depicts the temperature curves for two substances labeled as substance X and Y. Why does the temperature remain constant as heat is added to each substance in the regions labeled A to B, C to D, and A' to B', and C' to D'? Based on the curve for either substance X or substance Y and using what you know about the particulate nature of matter, and the relationship between temperature and potential or kinetic energy, describe why adding heat leads to the step-wise change in temperature depicted in the graphs. We're starting the add-ins runtime, just a moment... R X 80%