How much energy calories results from a change in the temper

How much energy (calories) results from a change in the temperature of 22.0 grams of ethanol from 42.0 °C to 24.0 OC? specific heat of ethanol = 0.58 cal/g oc A.-18.5 cal 8.99.0 ca c. 125.2 cal D.-229.7 cal

Solution

by using Q= m*c*deltaT

here m= 22 g c= 0.58 cal/gC abd Delta T = 24-42= -18 C

using the values

Q= 22*0.58*(-18)= -229.68 cal = -229.7 cal