A chemist mixes 500 g of lead at 500°C with 1,200 g of water at 20°C. She then mixes 500 g of copper at 500°C with 1,200 g of water at 20°C. The specific heat capacity of lead is 0.1276 J/g°C and the specific heat capacity of copper is 0.3845 J/g°C. What will be true about the final temperatures of the two systems? A. The final temperature of the lead-water system will be equal to the final temperature of the copper-water system. B. The final temperature of the lead-water system will be higher than the final temperature of the copper-water system. C. The final temperature of the lead-water system will be lower than the final temperature of the copper-water system. D. Cannot be determined from the given information.
A chemist mixes 500 g of lead at 500°C with 1,200 g of water at 20°C. She then mixes 500 g of copper at 500°C with 1,200 g of water at 20°C. The specific heat capacity of lead is 0.1276 J/g°C and the specific heat capacity of copper is 0.3845 J/g°C. What will be true about the final temperatures of the two systems? A. The final temperature of the lead-water system will be equal to the final temperature of the copper-water system. B. The final temperature of the lead-water system will be higher than the final temperature of the copper-water system. C. The final temperature of the lead-water system will be lower than the final temperature of the copper-water system. D. Cannot be determined from the given information.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 110A: Calculate Suppose that two pieces of iron, one with amass exactly twice the mass of the other, are...
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A chemist mixes 500 g of lead at 500°C with 1,200 g of water at 20°C. She then mixes 500 g of copper at 500°C with 1,200 g of water at 20°C. The specific heat capacity of lead is 0.1276 J/g°C and the specific heat capacity of copper is 0.3845 J/g°C. What will be true about the final temperatures of the two systems?
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A. The final temperature of the lead-water system will be equal to the final temperature of the copper-water system.
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B. The final temperature of the lead-water system will be higher than the final temperature of the copper-water system.
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C. The final temperature of the lead-water system will be lower than the final temperature of the copper-water system.
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D. Cannot be determined from the given information.
Expert Solution
Step 1
Given : Mass of lead = 500 g
Mass of water used for lead = 1200 g
Mass of copper = 500 g
Mass of water used for copper = 1200 g
Initial temperature of water used for copper = initial temperature of water used for lead = 20.0 oC
Initial temperature of lead = initial temperature of copper = 500 oC
Specific heat capacity of lead = 0.1276 J/g.oC
And specific heat capacity of copper = 0.3845 J/g.oC
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