A person uses 750 kcal on a long hike. Calculate the

Step 1 of 2:

The goal of the problem is to calculate the energy used for the hike in each of the given energy units.

Given:

Energy = 750 kcal

a.  Here, we are asked to find the energy in joules

First, let’s find the conversion factor:

1 kcal = 4184 J

So, the conversion factor is \(\frac{4184 \mathrm{~J}}{1 \mathrm{kcal}}\)

Therefore, 750 kcal in joules will be:

\(=750 \mathrm{kcal} \times \frac{4184 \mathrm{~J}}{1 \mathrm{kcal}}\)

Hence, 750 kcal in joules is 3,138,000 J