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• ### We did the lab of latent heat of fusion of ice, and I am confused that what the 'water equivalent...

We did the lab of latent heat of fusion of ice, and I am confused that what the 'water equivalent' represents. I thought it is the amount (kg) of water, but it is mccc according to this lab manual, which unit is (J/oC). Please answer what the water equivalent represents and the unit of it. - In this experiment, an ice cube of mass mt, assumed to be at 0°C, is placed in a calorimeter containing a mass of water...

• ### Calculate the final equilibrium temperature when 10.0 grams of steam initially at 100 degree C is...

Calculate the final equilibrium temperature when 10.0 grams of steam initially at 100 degree C is mixed with 450 grams of liquid water and 110 grams of ice at 0 degree C in a calorimeter. That is, the liquid water AND the ice are initially at 0 degree C. Ignore any heat energy exchanges with the calorimeter and the surroundings. If you conclude that the final temperature of the system is 0 degree C, then what mass of ice remains,...

• ### 1. An unknown sample is being evaluated in lab. What is the specific heat of the...

1. An unknown sample is being evaluated in lab. What is the specific heat of the compound if it requires 105.06 J to raise the temperature of 51.68 grams of the unknown from 15.25 °C to 22.9 °C. 2. A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celsius is added to 50.00 grams of water initially at 5.94 degrees Celsius. The final temperature of the system is 20.15 degrees Celsius. Calculate the specific heat of the...

• ### 1. An unknown sample is being evaluated in lab. What is the specific heat of the...

1. An unknown sample is being evaluated in lab. What is the specific heat of the compound if it requires 105.06 J to raise the temperature of 51.68 grams of the unknown from 15.25 °C to 22.9 °C. 2. A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celsius is added to 50.00 grams of water initially at 5.94 degrees Celsius. The final temperature of the system is 20.15 degrees Celsius. Calculate the specific heat of the...

• ### please answer all questions Temperature Change and Phase Change - Specific Heat and Latent Heat -...

please answer all questions Temperature Change and Phase Change - Specific Heat and Latent Heat - From COLD ICE to Warm Water The quantitative relationship between heat transfer and temperature change is Q = mcAT, where Q is heat transfer, m is the mass of the substance, and AT is the change in temperature. The symbol c stands for specific heat which depends on the material and phase (for exmample, water and ice have different specific heat). The specific heat...

• ### The second pic is the experiment result. Experiment 1 Determine the Latent heat of fusion for...

The second pic is the experiment result. Experiment 1 Determine the Latent heat of fusion for ice LU kg) to 3 significant figures using calorimetry and the table below. Note that the shaded cell should be evaluated using your data LAST Equation and then value value value (10s//kg) 2. mice = mwater Equation 1: Construct the conservation of energy equation for heat Q m c ar n c (Trnal-Tinitial) Adding heat to an object can raise its temperature: Adding heat...

• ### A 25.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity)...

A 25.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity) containing water at 15.00°C. When equilibrium is reached, the final temperature is 8.00°C. How much water did the calorimeter contain initially? The specific heat of ice is 2090 J/kg ∙ K, that of water is 4186 J/kg ∙ K, and the latent heat of fusion of water is 33.5 × 104 J/kg.

• ### 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....

• ### A 29.0 g ice cube at -15.0oC is placed in 180 g of water at 48.0oC....

A 29.0 g ice cube at -15.0oC is placed in 180 g of water at 48.0oC. Find the final temperature of the system when equilibrium is reached. Ignore the heat capacity of the container and assume this is in a calorimeter, i.e. the system is thermally insulated from the surroundings. Give your answer in oC with 3 significant figures. Specific heat of ice: 2.090 J/g K Specific heat of water: 4.186 J/g K Latent heat of fusion for water: 333...

• ### Pre Lab for Calorimetry Introduction Calorimetry is used to determine the specific heats and heat of...

Pre Lab for Calorimetry Introduction Calorimetry is used to determine the specific heats and heat of transformation of materials. One can carry this out in one of two ways. One way is to take a material and isolate it from the environment and then put it a know power (energy per unit time) and measure how the temperature changes with time. When the material undergoes a phase transition (such as from ice to water) the temperature will stay constant until...