answersLogoWhite

0


Best Answer

They breakdown the food to its simplest form then place it in a metal cup which is in a water box. After they place the cup in the water they take the temperature of the water (Tinitial). When they have the temperature of the water they ignite the food and check the temperature after the fire(Tfinal). Then they use the equation

q=Masswater x specific heatwaterx ΔTwater

(q=Heat in calories or joules) (T=temperature) (ΔTwater=Tfinal-Tinitial) (spefic heat of water= 4.18 J/g °C) (Masswater= Mass of water in box - mass of box w/o water)

(joules to calore conversion 1 calorie=4.184 Joules)

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do scientists determine how many calories a food has?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

On a food label how many calories per day are used as the standard to determine the percent daily value?

2500


How many fats are there in 135 calories?

Fats are not in calories but in food. Food nutrients (and fats are one of them) usually have calories.


How many standard SI calories are in one food Calorie?

1000. Food Calories are SI kilocalories


How many calories in chicken egg foo young?

how many calories in egg foo young? how many calories in egg foo young?


How many calories does jump rope have?

its not a food


How many calories are in 5000 pounds of food?

Depends on the kinds of food.


How many calories is listed on daily value food label?

The daily value on food labels is based of of a 2,000 calories diet.


How many calories do you eat each day on the Atkins diet?

That depends on the food eaten, each food has different calories content


How many calories in Chinese food?

forty five


Where could a person find information on the calorie content in food?

The information on calories on food can be found on the package of each food. Moreover, one can also search on the internet for the calories of each food, such as the understanding calories of NHS. One can also download an application which explains how many calories each food has.


How many calories is anorexia?

No. You would have to eat almost NO calories to accomplished that.


When you eat something you are taking in what and energy?

you are taking in calories. how many calories your taking in depends on the food.