Length of cooling including latent heat

[VoorMMMMMM]

Hello,

I would like to know how to calculate how long the phase transition when cooling lasts. So basically how long the latent transition lasts.

I really don't have any ideas how this could be calculated, although I would assume it is function of the mass.

Any help is much appreciated.

 

[VoorMMMMMM]

Nvm found the solution; knowing the convection allows the the dQ/dt to be calculated. The rest is common sense.