Question

A mixture of 250g of ice at 0c is kept in a calorimetre

Answer 1

Hey friend,

Here is your answer:

Given that:

10 gm of ice at 0°C is kept in calorimeter of water 10 gm.

To find,

The amount of heat that must be supplied.

Solution:

First we must calculate the energy needed for ice at 0°C to Convert into water at same temperature. 

So,  We know that,

Here , L v - Latent Heat of Fusion of water = 80 cal/gm 

⇒  

Now it has to convert from 0°C water to 100°C of water.

Then,

⇒ 

Here , S- Specific Heat of water = (1 cal /gm k) , And Change in temperature is (T f) - (T i)

Then,

⇒ 

Now, From 100°C water to Vapor at same temperature. 

Here Lv = 540 cal/gm.

⇒ 

Then,

⇒ 

⇒ 

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Hope my answer is helpful to you.