How many joules are needed to warm 45.0 grams of water from 30.0 degrees c to 75.0 degrees c?

Answer : The amount of heat needed are, 8464.5 J

Explanation :

Formula used :

where,

q = heat gained = ?

m = mass of water = 45.0 g

c = specific heat of water =

= final temperature =

= initial temperature =

Now put all the given values in the above formula, we get:

Thus, the amount of heat needed are, 8464.5 J

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explanation: