How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 12C?
q = mass x specific heat x delta T
To calculate the amount of heat gained by the water when a chemical reaction takes place, we can use the equation:
q = m * C * ΔT
where:
q = amount of heat gained or lost in Joules
m = mass of water in grams
C = specific heat capacity of water (4.18 J/g°C)
ΔT = change in temperature in Celsius
First, let's convert the volume of the aqueous solution to its mass. The density of water is approximately 1 g/mL, so 100 mL of water has a mass of 100 g.
Now we can substitute the values into the equation:
q = 100 g * 4.18 J/g°C * 12°C
Calculating this, we get:
q = 5016 Joules
Therefore, the amount of heat gained by the water in the chemical reaction is 5016 Joules.