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1. What is the final temperature when the 625 g of water at 75.0°C loses 7.96 x10^4 J?

1. What is the final temperature when the 625 g of water at 75.0°C loses 7.96 x10^4 J?

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.106PAE
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Solve the following problem. 1. What is the final temperature when the 625 g of water at 75.0°C loses 7.96 x10^4 J? 2. A steel section of the Alaskan pipeline had a length of 65m and a temperature of 18 °C when it was installed. What is its change in length when the temperature drops to a frigid of -45°C? 3. A string 4 mm in diameter has original length 2 m. The string is pulled by a force of 200 N. If the final length of the spring is 2.02 m, determine : (a) stress (b) strain (c) Young's modulus 4. A string has a diameter of 2 cm and the original length of 3 m. The string is pulled by a force of 200 N. Determine the change in length of the string! Young's modulus of the string = 5 x 10^9 N/m2 5. Eiffel tower is made up of iron and its height is roughly 300 m. During winter season (January) in France the temperature is 2°C and in hot summer its average temperature 25°C. Calculate the change in height of Eiffel tower between summer and winter. The linear thermal expansion coefficient for iron a = 10×10^6 per °C
Transcribed Image Text:Solve the following problem. 1. What is the final temperature when the 625 g of water at 75.0°C loses 7.96 x10^4 J? 2. A steel section of the Alaskan pipeline had a length of 65m and a temperature of 18 °C when it was installed. What is its change in length when the temperature drops to a frigid of -45°C? 3. A string 4 mm in diameter has original length 2 m. The string is pulled by a force of 200 N. If the final length of the spring is 2.02 m, determine : (a) stress (b) strain (c) Young's modulus 4. A string has a diameter of 2 cm and the original length of 3 m. The string is pulled by a force of 200 N. Determine the change in length of the string! Young's modulus of the string = 5 x 10^9 N/m2 5. Eiffel tower is made up of iron and its height is roughly 300 m. During winter season (January) in France the temperature is 2°C and in hot summer its average temperature 25°C. Calculate the change in height of Eiffel tower between summer and winter. The linear thermal expansion coefficient for iron a = 10×10^6 per °C
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