A certain amount of heat was applied to a 10g of a mysterious substance at 10 de

Question

A certain amount of heat was applied to a 10g of a mysterious substance at 10 degrees C until the final temperature of the substance becomes 20 degrees C. If he same amount of heat is applied to 20 g of the same substance at 20 degrees C, what would be the final temperature of this substance ? A certain amount of heat was applied to a 10g of a mysterious substance at 10 degrees C until the final temperature of the substance becomes 20 degrees C. If he same amount of heat is applied to 20 g of the same substance at 20 degrees C, what would be the final temperature of this substance ?

Explanation / Answer

Say final temperature of substance be Tf

then,

10 x (20 - 10) = 20 x (Tf - 20)

Tf = 25 oC

So the final temperature of the substance when started with 20 g would be 25 oC

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