## Specific heat capacity of ice

Clarissa Cabil 1I
Posts: 66
Joined: Fri Sep 28, 2018 12:19 am

### Specific heat capacity of ice

When calculating q of ice combining with water, I know you would use the equation q = mCΔT + nΔHfus.
For C or specific heat, do I use the specific heat of water or ice? Why?

skyeblee2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

### Re: Specific heat capacity of ice

Think of it as two reactions occurring, where the ice (gains heat and) is undergoing a phase change to water and water (loses heat and) is undergoing a phase change to water. Thus you would have two identical equations equal to each other except for the specific heat and enthalpies.

ice: q(gain) = mC(solid)ΔT + nΔH(fus)
water: q(loss) = mC(liquid)ΔT + nΔH(freezing)

note that q(loss)=q(gain)
thus: mC(solid)ΔT + nΔH(fus) = mC(liquid)ΔT + nΔH(freezing)

eden tefera 2B
Posts: 39
Joined: Fri Sep 28, 2018 12:21 am

### Re: Specific heat capacity of ice

Since each of them have their own phase change, you use that phase's specific heat capacity.