physics
posted by lyd .
A 1.2 kg block of ice is initially at a temperature of 5°C.
(a) If 5.8 multiplied by 105 J of heat are added to the ice, what is the final temperature of the system?
°C
(b) Suppose the amount of heat added to the ice block is increased by a factor of 3.0. By what factor must the mass of the ice be increased if the system is to have the same final temperature?
multiplied by

heat = mCpTsub(fi)
609 J = (1.2kg)(4184 J/kgC)(Tf  Ti)
[609 J/ [(1.2kg)(4184 J/kgC)]] 5C = Tf
Tf = 4.87... degrees C. for part A
For Part B:
Use the same equation, except multiply heat by 3. Solve for the new mass, then divide that mass by the old mass (1.2kg) to get the factor. It's probably 3, but I don't feel like checking! Good luck.
Respond to this Question
Similar Questions

Physics
A 10 kg block of ice has a temperature of 13°C. The pressure is one atmosphere. The block absorbs 4.10 106 J of heat. What is the final temperature of the liquid water? 
Physics
I was having trouble with two different physics problems when studying for a test. Any help is appreciated. 1.) A 11.6kg block of ice has a temperature of 14.5 °C. The pressure is one atmosphere. The block absorbs 6.87 x 106 J of … 
physics
A 1.2 kg block of ice is initially at a temperature of 5°C. (a) If 5.8 multiplied by 105 J of heat are added to the ice, what is the final temperature of the system? 
physics
0.1kg of ice initially at a temperature of 10 degrees Celsius is added to a cup with .5kg of water initially at 20 degrees Celsius. The water and ice are isolated thermally from their surroundings. The specific heat of ice is 2000 … 
physics
A 1.3 block of ice is initially at a temperature of 3.5. If 6.6×105 of heat are added to the ice, what is the final temperature of the system? 
physics
A 40g block of ice is cooled to −71°C and is then added to 590 g of water in an 80g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. … 
physics
A 40g block of ice is cooled to −71°C and is then added to 590 g of water in an 80g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. … 
physics
A 5kg block of ice is at a temperature of 27 °C. How much heat must be added to the ice to produce 5 kg of liquid water with a final temperature of 35 oC? 
had
A 0.106 kg ice cube is taken out of a freezer with temperature 16°C. It is then added to a glass of water with mass 0.25 kg. The water initially has a temperature of 24.2 °C. Assume no heat is added or lost to the surroundings. … 
physics
a) Two 36 g ice cubes are dropped into 300 g of water in a thermally insulated container. If the water is initially at 19°C, and the ice comes directly from a freezer at 19°C, what is the final temperature at thermal equilibrium?