[Bal21]

hi,
I've the pre-exponential factor in m4/kg.s and in Star CCM+ it asks for pre-exponent unit system as mol, cm, s, K. Activation energy is in J/kmol. Reaction is 2nd order wrt product.

How I do convert the pre-exponential factor to Star CCM+ units?

[poltushima]

Have a reference book handy. It’s a quick way to get the conversion you need without any fuss.

[Wearelion]

If you’re dealing with unit conversions, it’s good to have a quick reference. For example, if you need to convert liters to ounces, it’s handy to know that there are approximately 33.814 ounces in a liter. This can come in useful for various applications, whether you're working with fluids in science or just trying to make a recipe. If you’re unsure of the conversion, there are plenty of online tools and calculators that can help. You might find it helpful to visit a site that offers a simple conversion tool. One such resource can be found here: How many oz in a liter.