In an exothermic reaction the temperature of a 100-gram water bath is raised 5 Centigrade degrees. How many calories does the water absorb?

Answer 1

q = m c ΔT

q = heat absorbed

m = 100. g

c = 1 cal g^-1 °C^-1

ΔT = 5 °C

q = 100. g x 1 cal g^-1 °C^-1 x 5 °C = 500 cal