A reaction measured in a calorimeter with a heat capacity of 1.50 J·°C-1 caused the temperature of the calorimeter to increase by 26.6 °C. How much heat was released by the reaction?
2006-11-29 06:56:04 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Usually, q = cmΔT (c is the heat capacity of the object absorbing or releasing heat, m is the mass of the object absorbing or releasing heat)
In this case, the mass of the calorimeter is already somehow incorporated into the heat capacity (you can tell by looking at the units). In this case, q = cΔT:
q = cΔT
q = (1.50)(26.6)
q = 39.9 J
*** 39.9 J of heat were released by the reaction.
2006-11-29 06:59:22 · answer #1 · answered by عبد الله (ドラゴン) 5 · 0⤊ 0⤋
it takes 1.5Joules to raise the temp by 1 degree C. So for
a temp increase of 26.6 there must be energy of
(26.6 x 1.5) Joules.
2006-11-29 07:05:48 · answer #2 · answered by Jim C 3 · 0⤊ 0⤋
Q = C*ÎT = 1.50*26.6 = 39.9 J
2006-11-29 07:03:28 · answer #3 · answered by Dimos F 4 · 0⤊ 0⤋