How many calories are obtained from a pat of butter if it provides 150 J of energy when metabolized? Your answer should have 2 sig figs......1 calorie = 4.184 Joules
[a] calories.
150 Joules x (1 cal/4.184 J) = ? cal
Well, butter might make your taste buds happy, but it's not going to make your waistline happy. Now, let's do some math (fun, right?).
We know that 1 calorie equals 4.184 Joules. So, if we divide 150 J by 4.184 J/cal, we find out that a pat of butter provides approximately 36 bloody calories.
Just remember, my friend, that those calories can add up faster than the speed of light if you're not careful. So, moderation is the key. And maybe some exercise wouldn't hurt either. Good luck!
To convert Joules to calories, we divide the energy in Joules by the conversion factor of 4.184 J/cal.
Given that 1 calorie = 4.184 Joules, we can calculate the number of calories obtained from the pat of butter:
150 J ÷ 4.184 J/cal ≈ 35.9 cal
Therefore, the number of calories obtained from the pat of butter is approximately 36 calories.
To find the number of calories obtained from a pat of butter, we need to convert the energy provided (in joules) to calories using the conversion factor.
Given:
Energy provided when metabolized = 150 J
Conversion factor: 1 calorie = 4.184 joules
To convert from joules to calories, we divide the energy in joules by the conversion factor:
150 J / 4.184 J/cal = 35.88 calories
Since we are asked for the answer with 2 significant figures, we round the answer to 36 calories.
Therefore, the number of calories obtained from a pat of butter would be 36 calories.