Question

calculate the energy change

a beaker containing 450 grams of water is heated from 15.0 C to 18.0 C.
A. Determine the energy change for the water.
B. Determine the energy change for the surroundings.

Answer 1

=m*s*dt

Answer 2

m= mass of water

Answer 3

dt= change in temprature
s= specific heat

Answer 4

thank you for your reply that's the exact formula I used and I got 130kj earlier

Answer 5

but im not sure that answer is for which of the question also how do I find the answer for the other question

Answer 6

s=4.18 j/gk for water

Answer 7

and mass=450 g
dt=3

Answer 8

heat=450*4.18*3

Answer 9

=5643 joules
=5.6 kJ

Answer 10

why is dt 3?

Answer 11

lol dt = change in temprature

Answer 12

so u tell me now dt=??

Answer 13

wops yea I was confused I typed the number wrong 15c to 85 c it should be 70degree difference

Answer 14

lolll

Answer 15

so yea I think I got the answer for one of the question but not sure the answer to which of the question a or b. can u tell me how to find the answer for the other question