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Question 10

From Physics HL Paper 1A (May 2025, TZ1)

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  1. A block of ice of mass MM is at its melting point.
    A smaller mass mm of water at a temperature of T∘CT^\circ\text{C} is placed on the top surface of the ice and remains there.
Diagram showing a block of ice with a smaller amount of water on top, labeled 'water' and 'ice'.
Diagram showing a block of ice with a smaller amount of water on top, labeled 'water' and 'ice'.

The specific latent heat of fusion of ice is LL and the specific heat capacity of water is cc.
What mass of ice melts?

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