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).
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Your 200g cup of coffee is boiling hot (100 degrees celcius).
You throw in 50g of...
An insulated Thermos contains 190 cm3 of hot coffee at 87.0°C. You put in a 13.0...
An insulated Thermos contains 190 cm3 of hot coffee at 87.0°C. You put in a 13.0 g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg. The density of water...
An insulated Thermos contains 200 cm3 of hot coffee at 80.0°C. You put in a 16.0...
An insulated Thermos contains 200 cm3 of hot coffee at 80.0°C. You put in a 16.0 g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg. The density of water...
Chapter 18, Problem 035 An insulated Thermos contains 150 cm3 of hot coffee at 86.0°c. You...
Chapter 18, Problem 035 An insulated Thermos contains 150 cm3 of hot coffee at 86.0°c. You put in a 18.0 g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg K. The latent heat of fusion is 333...
An insulated Thermos contains 170 cm3 of hot coffee at 82.0°C. You put in a 13.0...
An insulated Thermos contains 170 cm3 of hot coffee at 82.0°C. You put in a 13.0 g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg. The density of water...
You pour 210 g hot coffee at 78.7 degree C and some cold cream at 7.50...
You pour 210 g hot coffee at 78.7 degree C and some cold cream at 7.50 degree C to a 115-g cup that is initially at a temperature of 22.0 degree C. The cup, coffee, and cream reach an equilibrium temperature of 63.0 degree C. The material of the cup has a specific heat of 0.2604 kcal/(kg middot degree C) and the specific heat of both the coffee and cream is 1.00 kcal/(kg middot C). If no heat is lost...
A coffee-cup calorimeter contains 100.0mL of 1.00M HCl at 22.4 degrees celcius. When .243g of Mg...
A coffee-cup calorimeter contains 100.0mL of 1.00M HCl at 22.4 degrees celcius. When .243g of Mg metal is added to the acid, the ensuing reaction: Mg(s) + 2 HCl (aq) --> MgCl2(aq) + H2 (g) delta Hrxn=? causes the temperature of the solution to increase to 33.4 degrees celcius. What is the value of delta Hrxn of the reaction? Assume the density of the solution is 1.01 g/ml and that its specific heat is 4.18 J/g x celcius.
Please show your work! 6. (2 points) You are given 400 g of coffee (same specific heat as water) at 95.0°C (too hot to S...
Please show your work!
6. (2 points) You are given 400 g of coffee (same specific heat as water) at 95.0°C (too hot to SS drink). How much ice (at 0.0°C) must be added to your coffee in order to cool it to 50.0°C? Neglect heat content of the cup and heat exchanges with the surroundings. Latent heat of fusion of ice is 3.33x10 J/kg: Specific heat of ice is 2100 J/(kgx°C). You must know the specific heat of water....
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 make a cup of hot coffee and pour it into an insulated container that already...
You make a cup of hot coffee and pour it into an insulated container that already has ice in it. Assume that the insulated container itself has a very small heat capacity so that any energy transferred from it or to it is negligible and can be ignored. What energy systems are changing. starting from when you pour the coffee into the insulated container to when the ice is completely melted and the mixture has a uniform temperature? Ethermal, coffee,...
A. Determine how much milk at 4 degree celcius she should add the coffee B.When will...
A. Determine how much milk at 4 degree celcius she should add
the coffee
B.When will the rate of heat loss be greatest ...Before the
mill was added or After the milk was added ???
C.Which principle did you use to come to your conclusion above
??
A student is making a cup of coffee and is adding milk to the coffee to cool it down to a drinkable temperature of 50 °C. There is 183 ml of coffee at...
Chapter 18, Problem 035 An insulated Thermos contains 150 cm3 of hot coffee at 86.0°c. You put in a 18.0 g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg K. The latent heat of fusion is 333...
You pour 210 g hot coffee at 78.7 degree C and some cold cream at 7.50 degree C to a 115-g cup that is initially at a temperature of 22.0 degree C. The cup, coffee, and cream reach an equilibrium temperature of 63.0 degree C. The material of the cup has a specific heat of 0.2604 kcal/(kg middot degree C) and the specific heat of both the coffee and cream is 1.00 kcal/(kg middot C). If no heat is lost...
Please show your work!
6. (2 points) You are given 400 g of coffee (same specific heat as water) at 95.0°C (too hot to SS drink). How much ice (at 0.0°C) must be added to your coffee in order to cool it to 50.0°C? Neglect heat content of the cup and heat exchanges with the surroundings. Latent heat of fusion of ice is 3.33x10 J/kg: Specific heat of ice is 2100 J/(kgx°C). You must know the specific heat of water....
You make a cup of hot coffee and pour it into an insulated container that already has ice in it. Assume that the insulated container itself has a very small heat capacity so that any energy transferred from it or to it is negligible and can be ignored. What energy systems are changing. starting from when you pour the coffee into the insulated container to when the ice is completely melted and the mixture has a uniform temperature? Ethermal, coffee,...
A. Determine how much milk at 4 degree celcius she should add
the coffee
B.When will the rate of heat loss be greatest ...Before the
mill was added or After the milk was added ???
C.Which principle did you use to come to your conclusion above
??
A student is making a cup of coffee and is adding milk to the coffee to cool it down to a drinkable temperature of 50 °C. There is 183 ml of coffee at...
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