If 75 g of liquid water ( c = 4.18 j/g c ) in a calorimeter changes temperature from 25 c to 75 c, how much heat was transferred

The heat transferred is 157 kJ.

Step-by-step explanation:

Given : If 75 g of liquid water ( C = 4.18 j/g C ) in a calorimeter changes temperature from 25 C to 75 C.

To find: How much heat was transferred ?

Solution :  

Using the formula,

Where,

q - heat absorbed

c  - the specific heat of the substance, in your case of water

ΔT  - the change in temperature, as the difference between the final temperature and the initial temperature.

We have given,

c=4.18 j/g C

m=75 g

ΔT= 75 C-25 C=50 C

Substitute the values in the formula,

Therefore, The heat transferred is 157 kJ.

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step-by-step explanation:

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