When 200 grams of water cools from 50 c to 25 c the total amount of heat energy released by the water is?

Answer : The heat released by the eater is, [/tex]

Explanation :

Formula used :

or,

where,

Q = heat released = ?

m = mass of water = 200 g

c = specific heat of water =

= initial temperature  =

= final temperature  =

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

[/tex]

Therefore, the heat released by the eater is, [/tex]

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )