Question

A Aluminium Sphere 100 gram mass is heated to raise it's temperature to 100°C and it is released in water of mass 100 gram and temperature is 20°C in a Copper calorimeter. If the mass of calorimeter is 50 grams, what will be the maximum temperature of water?​

Answer 1

Answer:

The amount of heat last by copper ball =m

ball

C Cu

ΔT bballl

=(100gm)(0.1cal/gm˚C)(T−75)˚C

The amount of heat gained by calorimeter =m

calorie

CCu

ΔT Calorie

=(100gm)(0.1cal/gm˚C)(75−30)˚C

Amount of heat gained by water =m

w C Cu ΔT w

(170gm)(1cal/gm˚C)(75−30)˚C

Hence, from conservation of energy,

100×0.1×(T−75)=100×0.1×(75−30)+170×1×(75−30)

⇒T=885˚C

Hence, correct answer is option C.

Answer 2

Answer:

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