Sunday

March 29, 2015

March 29, 2015

Posted by **anthony** on Wednesday, April 11, 2012 at 2:05am.

−71°C

and is then added to 590 g of water in an 80-g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. (If not all the ice melts, determine how much ice is left.) Remember that the ice must first warm to 0°C, melt, and then continue warming as water. (The specific heat of ice is 0.500 cal/g · °C = 2,090 J/kg · °C.)

Tf = ? (°C)

mass of ice final (g)

- physics -
**tanmay bhoite**, Wednesday, April 11, 2012 at 2:36am0 degree celcius because all the ice has not melted or 4 degree celcius.

- physics -
**Elena**, Wednesday, April 11, 2012 at 5:25pmFor the ice to reach 0 degrees, you will need Q = c• m• ΔT 0.04• 2090 • 71 = 5935,6 J

The latent heat needed to melt the ice is 334 000 J / kg.

So to melt the ice, you will need 334 000 • 0.040 = 13360 J

Assume final temperature = x degC

Specific heat of water is 4180 J / k g degC.

So heat applied to ice will be 0.04• 4180• x = 1672 x

Total heat energy applied = 5935,6 + 13360 + 167,2x

Heat from water =0.590 • 4180 • (27-x) = 2466.2• (27-x)

Specific heat of copper is 385 J / kg degC.

Heat from copper = 0.08• 385 • (27-x) = 30.8• (27-x)

Heat gained = heat loss

5935,6 + 13360+167.2 x =2466.2(27-x) +30.8• (27-x)

19296 +167.2 x = 2466.2• (27-x) +30.8• (27-x)

x =8.53

So final temperature is 8.53 degC.

**Answer this Question**

**Related Questions**

physics - A 40-g block of ice is cooled to −71°C and is then added to 590 ...

physics - A 1.3- block of ice is initially at a temperature of -3.5. If 6.6×105 ...

physics - A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water...

Physics-PLEASE ANSWER, it's due soon! - A copper calorimeter can with mass 0.202...

physics - A 5-kg block of ice is at a temperature of -27 °C. How much heat must ...

physics - A 1.2 kg block of ice is initially at a temperature of -5°C. (a) If 5....

physics - A 1.2 kg block of ice is initially at a temperature of -5°C. (a) If 5....

Science - A piece of copper at 90°C is added 2.200 KG of water at 15°C inside an...

Chemistry - A piece of copper metal is initially at 100.0°C. It is dropped into ...

physics - A copper calorimeter of mass 150g was half filled with water of mass ...