Question

An exothermic reaction releases 325 000 calories . Convert this energy to kj

Answer 1

1 cal = 4.184 J

1 cal = 0.004184 kJ

325000 cal = X kJ

0.004184/ 1 = x / 325000

solve for x, 3 significant figures!

Answer 2

Answer:

1359.8 kj

Explanation:

To convert from calories to kilojoules, we need to use a conversion factor, which is the equivalence between these two magnitudes:

$1000cal = 4.184 kj$

So, 325 000 calories how many kilojoules should be?

$325000cal.\frac{4.184kj}{1000cal} = 1359.8kj$