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Topic: How many joules in a microliter of 1 mol glucose?  (Read 4068 times)

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Offline BuggyTanya

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How many joules in a microliter of 1 mol glucose?
« on: February 11, 2008, 05:58:38 PM »
Hi,

I am constructing a model of honeybee behaviour and need to incorporate honeybee energetics. I need to calculate how many joules per microliter in a :

1, 2.5, and 0.75 mol solution of glucose.

My attempt:

There are 686 kcal/mol glucose. I think this means that consuming 1 liter of 1 mol glucose would yield 686 kcal.
1 kcal = 4186 joules. Therefore 1 litre of 1 mol glucose has 2,871,596 joules (686 x 4186). This equals 2.87 joules per microliter (divide by 1 million). 1 microliter of 2.5 mol glucose solution would have 7.175 joules (2.87 x 2.5), and 1 microliter of a 0.75 mol glucose solution would have 2.15 joules (2.87 x 0.75).
Is this correct?

Thank you!


Offline Borek

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Re: How many joules in a microliter of 1 mol glucose?
« Reply #1 on: February 11, 2008, 06:09:58 PM »
Looks OK.
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