How many joules of heat are required to melt 8.5 g of copper at a temperature of 1083°C? Use the values found in Table 15 from Appendix C of your text. Add your answer ne

An insulated beaker with negligible mass contains liquid water with a mass of 0.235 kg and a temperature of 72.2 °C. ▼ Part A How much ice at a temperature of -21.4 °C must be dropped into the water so that the final temperature of the system will be 32.0 °C ? Take the specific heat of liquid water to be 4190 J/kg. K, the specific heat of ice to be 2100 J/kg. K, and the heat of fusion for water to be 3.34x105 J/kg . ► View Available Hint(s) mice = 0.096 Submit VE ΑΣΦ Provide Feedback Previous Answers www X Incorrect; Try Again; 5 attempts remaining kg Next >

An 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.

How much energy is required to raise the temperature of 0.2 kg of water from 120.°C to 80.°C? Answer in J. (What equation/ method should I use to solve this? Must I also convert the temperature to Kelvin if I'm not mistaken?)

A mass of steam at 120°C is added to 2kg of ice at 0°C to yield water at 20°C. What is the total amount of energy in Joules is lost by the steam? ROUND OFF YOUR ANSWER IN WHOLE NUMBER. DO NOT WRITE THE UNIT IN YOUR FINAL ANSWER. L = 3.34x10²; Lv 2.26x106 Cwater = : 4186 kg.C; Csteam = 2010- kg.C =

The temperature of a 63 g sample of an unknown substance is raised from 28° C to 86° C when 390 calories of heat are added . What is the specific heat of the sample , in cal/g . C ? Enter your calculated value to the nearest .001 cal/g . C .

How much energy is required to raise the temperature of 0.25 kg of water from 20.°C to 80.°C? Answer in J. (What must i do to solve this?)

A 83.78 gram copper metal is heated to 132°C and dropped into 125.76 gram of water at an initial temperature of Ty. When equilibrium is reached the temperature of copper-water mixture is 25°C. Calculate the initial temperature of water? If the specific heat of copper is 385 J/kg°C and Specific heat of water is 4186 J/kg°C. Initial temperature of water in (°C) =

While studying for this post-lab test, you realize that you still have 74 g of lukewarm coffee at 52°C left in a paper cup. When you pour 34 g of boiling water into the cup, the temperature of the resulting coffee-like mixture will be now °C. Please submit your answer WITHOUT its proper unit.

A 6.00-m-long cylinder of solid aluminum has a radius of 3.00 cm. "If the cylinder is initially at a temperature of 7.00 C, how much will the length change when the temperature rises to 40.0°C? (Express your answer to three significant figures.) Submit m Due to the temperature increase, by how much (in %) would the density of the aluminum cylinder decrease? (Express your answer to three significant figures.) Submit % By what percentage does the volume of the cylinder increase? (Express your answer to three significant figures.) %