# How much energy (in joules) is required to raise the temperature of 200g of liquid water from 20c to 50 c?

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Heat Capacity of liquid water: 4.2 J/(g*K)

Latent Heat of fusion of water: 330 J/g

Latent heat of vaporization of water: 2200 J/g

Heat Capacity of liquid water: 4.2 J/(g*K)

Latent Heat of fusion of water: 330 J/g

Latent heat of vaporization of water: 2200 J/g

##### 2 Answers

#### Explanation:

where

(specific heat capacity: the amount of energy needed to raise the temperature of

and

here,

It's about 25 kJ - make sure you're consistent in your units.

#### Explanation:

The calculation is

Where

So it works out like this

So E= 25,200 J (or 25.2 kJ).