Calculate change in temp (thermal conduciton)

[mm874]

Homework Statement

A steam boiler produces steam at a rate of 0.5 kg.s-1. If the specific latent heat of vaporisation of water is 2.3 MJ kg-1:

The boiler has a steel plate which is 6mm thick. The thermal conductivity of steel is 48Wm/s k/s. Calculate the temp drop across the boiler plates if the area through which the heat is conducted is 5m^2?

Homework Equations

Q/t=λ.A.(Change in temp/thickness)

The Attempt at a Solution

48 x 5 x (change in temp/0.006)

 

[rock.freak667]

Well you can get Q/t from the first line, so I guess you just need to rearrange to get the change in temperature.

 

[chetanladha]

The temperature drop that you will get from this equation will b a function of time.

I am wondering that it should also be a function of temperature of medium at the other side of plate, but the formulae doesn't take that into account.
Ideally the bigger the difference in temp of two medium, the higher will b the temp drop..

Wat do u guys think?>?