-g piece of metal at 95°C is dropped into 250 g of water at 17.0°C and heated to 19.4°C. What is the specific heat of the met
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- Jake pours 350 g of water at 41°C into a 750 g aluminum container that is at an initial temperature of 12°C. The specific heat of aluminum is 900 J/kg K, and that of water is 4186 J/kg K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? Group of answer choices 13°C 18 °C 32 °C 41°C1000 800 600 400 200 10 20 30 40 50 60 70 80 90 -200 400 Time in seconds Look at the graph above. How much did the temperature change from t = 30 to t = 60 seconds? %3D AT = unit Select an answer v This substance has a specific heat of 0.13 cal/g°C. If you have 34 grams of this substance, how much heat was added from t = 30 to t = 60 seconds? Q = unit Select an answer v Temperature In CAn unknown hot metal at 148.7°C with a mass of 49.6g was mixed with 28.61g of water at an initial temperature of 19.74°C. A final temperature (for both water and metal) of 27.71°C was reached. In units of J/(g°C), what is the specific heat of the unknown metal? Note: In the space below, please enter you numerical answer. Do not enter any units. If you enter units, your answer will be marked as incorrect.
- An 18.3-gram sample of an unknown metal is heated to 238°C, then placed in a calorimeter containing 500.0 g of water at 18.20°C. The final temperature of both the metal sample and the water is 18.45°C. Determine the specific heat capacity of the metal, and identify it using the table in your notes.When a material changes phase - liquid, solid, gas- heat exchange is required. This heat is called the Latent heat. is the equation where L is the Latent heat and is material specific. How much heat is required to take water (mass of .55 kg) from -20 to 20 C? L for ice to water is 33.5 * 104 J/kg. the specific heat of ice is 2090 J/(kg*C).and for water is 4186 J/(kg*C).450g of water is heated in a pot from 22°C to 62°C. The water has a specific heat capacity of 4190 J/kg*K. What is the amount of thermal energy/heat transferred to the water to increase the temperature?
- A graph of temperature versus time for a substance that has a mass of 2.00 kg is shown below. The sample is at a temperature of-10.0 degrees celsius and initially in the solid phase. Heat is added to the sample at a constant rate of 20.0 kj/minute. B& Care at a temperature of 119 degree Celsius. Answer the following questions: 1. What is the melting point of this substance? 2. What islare the phase/phases that exists/exist during the process from A to B and during the process from B to C? 3. Use the graph to calculate the specific heat for this substance in solid phase. 4.Use the graph to calculate the latent heat of fusion for this substance. Temperdture cc) B 120 + 100 80 60 40+ 20 + 12 4 6. 10 %3D 13 -20 Time (min) %3D F00Water vapor at 100 degrees Celsius is put in contact with ice at 0 degrees Celsius and this mixture eventually results in 45 kg of liquid water at 30 degrees Celsius. A. How many kilograms of ice were part of the mixture? B. How many kilograms of steam were part of the mixture?