Question

How much heat is absorbed when 4.0 grams of steam, H20 (g), is heated from

120°C to 160°C? Cwater(g)=1.86 J/g°C

Answer 1

297.6 J

Explanation:

Given that,

Mass, m = 4 grams

We need to find how much heat is absorbed when 4.0 grams of steam is heated from 120°C to 160°C.

We know that heat absorbed is given by :

`Q=mc\Delta T`

Where c is specific heat of water

Put all the values, we get :

`Q=4* 1.86* (160-120)\\\\=297.6\ J`

So, 297.6 J of heat is absorbed.