A 360. g iron rod is placed into 750.0 g of water at 22.5°C. The water temperature rises to 46.7°C. What was the initial temperature of the iron rod?

The initial temperature of the iron was

Explanation:

As we know that,  

        .................(1)

where,

q = heat absorbed or released

= mass of iron = 360 g

= mass of water = 750 g

= final temperature =

= temperature of iron = ?

= temperature of water =

= specific heat of iron =

= specific heat of water=

Now put all the given values in equation (1), we get

Therefore, the initial temperature of the iron was

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.