Wednesday
October 22, 2014

Homework Help: Math/Physics

Posted by Dylan on Saturday, March 23, 2013 at 1:02am.

A quantity of water at 87 degrees C is cooled at a rate of 2844 MJ/h. After 40 minutes, the water has changed to ice, having a temperature of 243K. Calculate the mass of the water/ice.

I know 243K = -30 degrees C
I'm assuming I have to use my sensible and latent heat formulas but I would need heat energy in kJ.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - Please Help! I am having difficulties grasping these concepts. Explain...
Physics - 3. The quantity 0.850kg of ice at -20 degrees Celsius is added to 1....
Math - 500$ is invested at 8.5% compounded annually. Find how long it will take ...
Physics 20 - 1. How much heat energy is required to change 500 grams of water at...
Chemistry - Hey, for chemistry class we are given days in the lab to conduct an ...
physics - A 40-g block of ice is cooled to −71C and is then added to 590...
physics - A 40-g block of ice is cooled to −71C and is then added to 590 ...
General Chemistry II - A quantity of ice at 0 degrees celcius is added to 64.3 ...
chem - .You have an ice cube that is 150 g and is at a temperature of 0C. You ...
physics - Given: latent heat of fusion of water 3.33x10^5 J/kg. A 147 g cube of ...

Search
Members