4. A marble is added is added to 40.0g of water. The initial temperature of the water is 25 degrees Celsius. The final temperature of the water and the marble is 22.5 degrees. a. Did the marble gain or lose heat? b. What is the heat change of the marble?

Q: To raise the temperature of aluminum which has a mass of 200 grams from 298 K to 348 K, 8400 joules…

A: specific heat of aluminum, c= 840  J/kg.K

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Q: The following 4 metals each had an initial temperature of25∘C. Exactly 100 Joules of energy as heat…

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Q: A 76.6 g piece of metal at 82.0°C is placed in 137 g of water at 21.0°C contained in a calorimeter.…

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Q: How much energy is needed to heat 180g of water from 28.0 C to 95C. The specific heat of water is…

A: Mass of water = 180g  Specific heat of water = 4.184j/g°C Change in temperature, ∆T = 95- 28…

Q: 2. If 200.0 grams of Ethanol is to be cooled from 55.2°C to 25.7°C, how much heat is released?

A: The solution is as follows :

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A:

Q: How does the ocean affect coastal climate? A. The specific heat capacity makes the coast colder in…

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Q: 4. A hot 1.00 kg chunk of copper is allowed to cool to 100.0°C. If the copper gave off 231 kJ of…

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Q: 2

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A:

Q: A 465 g piece of metal is dropped into 490 mL of water at 31.3 °C. The final temperature of the…

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Q: 1. Water has a specific heat of 4.184 J/g°C while glass (Pyrex) has a specific heat of 0.780 J/g °C.…

A: Heat is supplied in equal amounts to each substance water and pyrex with equal mass. The difference…