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Q 4. A metal block of heat capacity 600 J K-1 loses 1 M.J of heat...

Q 4. A metal block of heat capacity 600 J K-1 loses 1 M.J of heat energy to its surroundings. Find the decrease in temperature.

Q5. One mega joule of heat energy is supplied to a piece of iron and raises its temperature from 20?C to 200?C. Find the mass of the piece of iron.( Specific heat capacity of iron =451Jkg-1K-1

Q6. 30grams of water at 100?C are added to 100 grams of water at 20?C. If there is no heat loss to the surroundings, what is the resultant temperature of the mixture?

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