Question

A copper sphere of 100 g mass is heated to raise its temperature to 100 °C and
mass of calorimeter is 50 g, what will be the maximum temperature of water?
is released in water of mass 195 g and temperature 20 °C in a copper calorimeter. If the mass of calorimeter is 50g ,What will be maximum temperature of water ?​

Answer 1

Answer:

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Answer 2

Answer:

The amount of heat last by copper ball =m

ball

C

Cu

ΔT

ball

=(100gm)(0.1cal/gm˚C)(T−75)˚C

The amount of heat gained by calorimeter =m

calorie

C

Cu

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