In an experiment to determine the rate at which heat is extracted from a hot material, material at 90 °C is put into a copper vessel. The hot material and calorimeter are placed in a container holding cold water at 22.7 °C. The temperature of the water is then measured every 30 seconds for 3 minutes.

Question

anonymous · Answer

attachment

anonymous · Answer

that graph i think does not match the fact told be newton's aw of cooling that the body's rate of cooling reprsents an exponential function(a rectangular hyperbola)

anonymous · Answer

you don't need the graph to answer the question...

anonymous · Answer

wat is ur question? the rate?

anonymous · Answer

lol sorry!
Determine the average rate of increase in the temperature of the water per second (the units will be °C/sec

anonymous · Answer

yes the rate...is it (90-22.7)/180=0.3739
im pretty sure its wrong

anonymous · Answer

That's right. Because the curve in linear, we can take the difference in the endpoints and divide that by the total change in time.

anonymous · Answer

well the answer was wrong unfortunately...

anonymous · Answer

Your method is right, the numbers are wrong. Notice that water changes from 22.7 to 24.2.

anonymous · Answer

ohhh....daaaaaaa

anonymous · Answer

yout right...thanks

anonymous · Answer

*your