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12. A cup of coffee (mass = 125 g and initial temperature...
how much will the temperature of a cup (180) of coffee at 95 c be reduced...
how much will the temperature of a cup (180) of coffee at 95 c be reduced when a 45g silver spoon (specific heat 0.24 j/g c ) at 25 c is placed in the coffee and two are allowed to reach the same temperature? Assume that the coffee has the same density and specific heat as water.
A 33.0 g silver spoon at 18.2°C is placed in a cup of coffee at 94.1°C....
A 33.0 g silver spoon at 18.2°C is placed in a cup of coffee at 94.1°C. A short time later, the spoon is at 91.1°C. If, during this same time, the temperature of the coffee has fallen by 0.6°C,what is the mass of the coffee? (csilver = 0.056 cal/g°C and assume ccoffee = 1.0 cal/g°C)
In this virtual lab, you will use coffee cup calorimetry to determine the specfic heat, c,...
In this virtual lab, you will use coffee cup calorimetry to determine the specfic heat, c, of a metal Heating the metal Imagine that, in lab, you record the mass of a piece of metal, Mmetal, as 3 mnctal 45.00 g In the next step of the lab (as shown in the animation to the left) you heat up the piece of metal. Play the animation, and record the metal's highest temperature, Tmeta Number metal84 o C OHot Plate Reset...
5. Calculate the approximate final temperature of water in a coffee cup calorimeter if 33.9K heat...
5. Calculate the approximate final temperature of water in a coffee cup calorimeter if 33.9K heat is added to 420.0 g of water initially at a temperature of 22.60 °C (the specific heat water is 4.184 J/g.K). 6. Determine the mass of a sample of water in a coffee cup calorimeter if the final temperature is 65.7 °C, the initial temperature is 22.3 °C, and 27.6 kJ of heat is added to the water specific heat of water is 4.184J/g•K).
Your 235 mL cup of coffee is too hot to drink when served at 88°C. What...
Your 235 mL cup of coffee is too hot to drink when served at 88°C. What is the mass of an ice cube, taken from a -24°C freezer, that will cool your coffee to a pleasant 50°C? Specific heat of the water is 4190 J/kg·°C, specific heat of the ice is 2090 J/kg·°C, heat of fusion of ice is 3.33×105 J/kg.
You just made a cup (0.3 liters) of coffee, but it is too hot to drink....
You just made a cup (0.3 liters) of coffee, but it is too hot to drink. You wish to decrease the temperature of the tea from 72°C down to 64"C by submerging a numoer or aluminusp hcffefthe snd owever, instead o temperature (25°C), then how many spoons will be required to decrease the coffee to the optimum temperature? 5 spoons Assume: Cp for coffee 4184 Cp for aluminum 921 density of coffee= 1000 kg/m no heat loss from the cup...
In a coffee-cup calorimeter, 11.0-g sample of solid CaCℓ2 is dissolved in 125 g of water at 25.0 oC. The temperature in...
In a coffee-cup calorimeter, 11.0-g sample of solid CaCℓ2 is dissolved in 125 g of water at 25.0 oC. The temperature in the calorimeter is measured to be 39.2 oC when the dissolution of CaCℓ2 is completed. Assuming that the specific heat of solution is equal to that of water, i.e., 4.184 J/g oC, calculate the heat of solution of CaCℓ2 in water, in kJ/mol.
1.a In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat...
1.a In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a metal. She heats 18.7 grams of chromium to 98.51°C and then drops it into a cup containing 84.8 grams of water at 24.15°C. She measures the final temperature to be 25.94°C. Assuming that all of the heat is transferred to the water, she calculates the specific heat of chromium to be J/g°C. 1.b An electric range burner weighing 660.0 grams is turned...
Your 200g cup of coffee is boiling hot (100 degrees celcius). You throw in 50g of...
Your 200g cup of coffee is boiling hot (100 degrees celcius). You throw in 50g of -15 degrees celcius of ice to cool it off. Assuming negligible heat leaves the coffee-ice system during this process, what is the final temperature of your coffee? (The specific heat capacity of ice is 2.03 J/(g degree C and the specific heat capacity of water is 4.18 and the latent heat of melting for ice to water is 334J/g).
In a coffee-cup calorimeter, 11.0-g sample of solid CaCℓ2 is dissolved in 125 g of water...
In a coffee-cup calorimeter, 11.0-g sample of solid CaCℓ2 is dissolved in 125 g of water at 25.0 oC. The temperature in the calorimeter is measured to be 39.2 oC when the dissolution of CaCℓ2 is completed. Assuming that the specific heat of solution is equal to that of water, i.e., 4.184 J/g oC, calculate the heat of solution of CaCℓ2 in water, in kJ/mol.
In this virtual lab, you will use coffee cup calorimetry to determine the specfic heat, c, of a metal Heating the metal Imagine that, in lab, you record the mass of a piece of metal, Mmetal, as 3 mnctal 45.00 g In the next step of the lab (as shown in the animation to the left) you heat up the piece of metal. Play the animation, and record the metal's highest temperature, Tmeta Number metal84 o C OHot Plate Reset...
5. Calculate the approximate final temperature of water in a coffee cup calorimeter if 33.9K heat is added to 420.0 g of water initially at a temperature of 22.60 °C (the specific heat water is 4.184 J/g.K). 6. Determine the mass of a sample of water in a coffee cup calorimeter if the final temperature is 65.7 °C, the initial temperature is 22.3 °C, and 27.6 kJ of heat is added to the water specific heat of water is 4.184J/g•K).
You just made a cup (0.3 liters) of coffee, but it is too hot to drink. You wish to decrease the temperature of the tea from 72°C down to 64"C by submerging a numoer or aluminusp hcffefthe snd owever, instead o temperature (25°C), then how many spoons will be required to decrease the coffee to the optimum temperature? 5 spoons Assume: Cp for coffee 4184 Cp for aluminum 921 density of coffee= 1000 kg/m no heat loss from the cup...
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