7.2 colorimetry

what is calorimetry

method used to measure the heat absorbed or released in a chemical reaction

what is a calorimeter

device used to measure heat change

what unit is heat measured in (2)

calories or joules

what does Q represent

heat absorbed or released

what could be used as a good calorimeter

styrofoam cup

what happens to the solution of an exothermic reaction in a calorimeter

temperature increases

what happens to the solution of an endothermic reaction in a calorimeter

temperature decreases

what is specific heat

the amount of heat needed to raised 1 gram of something by 1 degree celsius

calorimetry equation

$$Q=m\cdot\Delta T\cdot SH$$

meaning of $\Delta T$

change in temperature

what does a positive $\Delta T$ mean

the solution warmed

what does negative $\Delta T$ mean

the solution cooled

what us fuel value

amount of energy released per gram of food during combustion

what type of calorimeter measures food calories

a bomb calorimeter

1 calorie = how many kcals

1000