# Question #eb3dd

##### 1 Answer

May 1, 2017

206.00

#### Explanation:

The formula to calculate the heat change of a reaction is

ΔH = -mcΔT (where m is the mass of the fluid whose temperature changes which in this case is water, c is the specific heat capacity of water and ΔT is the change in temperature of water)

Heat change when 0.025 mol of Na is added

=

=

Now this is heat change for 0.025 mole of Na.

Enthalpy change means you have to calculate the heat change for 1 mole.

So enthalpy change for 1 mole of Na is