- #1

- 256

- 29

- Homework Statement
- See attached

- Relevant Equations
- Q=mL

Q=mc(change T)

So all of the ice melts and I am guessing it then warms some so

Q=mL+mc(change in T)

for the water that cools down

Q=mc(change in T)

Q_cold = -Q_hot so -mc(Tf - Ti) = mL+mc(Tf - Ti)

My issue is that I have 2 unknowns. I don't know the specific heat capacity of water and I don't know the final temperature. I am not sure how I can find another equation to find the specific heat capacity of water either.

Even when I look up the specific heat capacity of water I am left with the wrong answer. specific heat capacity of water from internet is 4.186 J. When I use this I get -19346, which is obviously wrong. So I don't know if I am doing the equations wrong or if I need to find the specific heat capacity somehow.

Q=mL+mc(change in T)

for the water that cools down

Q=mc(change in T)

Q_cold = -Q_hot so -mc(Tf - Ti) = mL+mc(Tf - Ti)

My issue is that I have 2 unknowns. I don't know the specific heat capacity of water and I don't know the final temperature. I am not sure how I can find another equation to find the specific heat capacity of water either.

Even when I look up the specific heat capacity of water I am left with the wrong answer. specific heat capacity of water from internet is 4.186 J. When I use this I get -19346, which is obviously wrong. So I don't know if I am doing the equations wrong or if I need to find the specific heat capacity somehow.