Increase in entropy for 2.1×10⁷ kg ice avalanche descending 0.55 km

[S1CkFiSh]

2.1 x107 kg of ice and snow at 265 K slides 0.55 km (vertical distance) down a mountain in an avalanche. What is the increase in entropy? I am having trouble finding an equation on how to solve this problem. If anyone could help me at all, thank you.

 

[rl.bhat]

Change in entropy dS = dQ/T.
Here dQ = dW = mgh.

 

[S1CkFiSh]

Thank you very much, its very appreciated.