Is it possible to convert kg/(kWh) to litres/100m ?

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In summary, there is no direct conversion from kg/kWh to liters/meter due to their different dimensions. However, there are exceptions such as using physical constants or a specific system to convert between the two forms.
  • #1
nb89
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kg/kWhour into litres/100m? is this possible, and if so how? what happens to the hour?
 
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  • #2
I would be more curious what happens to the kW and the meters.

Do you have a specific system in mind?

Or do you want to do the conversion by using physical constants (such as c and hbar), because then I think it is not possible (kg/kWh ~ s / m^2 while l/m ~ m^2).
 
  • #3
CompuChip said:
kg/kWh ~ s / m^2 while l/m ~ m^2
Close.

What CompuChip is talking about is dimensional analysis. kg/kWh has dimensions of time2/length2, while liters/meter has dimensions of length2.

You can only convert from one form to another if both forms have the same dimensions. For example, you can convert from miles per hour to meters per second because both are in the form of length/time. There is no conversion from kg/kWh to liters/meter because the two forms are incommensurable.
 
  • #4
D H explained my post very well. There are however two exceptions:
1) Physical constants are not mentioned; for example energy and mass have very different units (kg m^2 / s^2 and kg, respectively) although multiplying by the speed of light squared converts one into the other
2) There is some specific system which makes a conversion possible, for example: a water heater doing so-many kW of work will heat so many water by 1 degree (actually, this case looks a lot like 1, with the "missing" quantity being the specific heat of water which can convert Joules to degrees per kilogram, for example).
 

Related to Is it possible to convert kg/(kWh) to litres/100m ?

1. Can kg/(kWh) be directly converted to litres/100m?

No, kg/(kWh) and litres/100m are units of different physical quantities and cannot be directly converted to one another.

2. What is the conversion factor between kg/(kWh) and litres/100m?

There is no exact conversion factor between these units as they measure different things. However, you can use the density of the substance being measured to convert between them.

3. How do I convert kg/(kWh) to litres/100m using density?

To convert kg/(kWh) to litres/100m, you need to know the density of the substance in kg/m3. Then, you can use the formula litres/100m = (kg/(kWh) * 100) / density.

4. What is the density of common substances measured in kg/m3?

The density of a substance can vary depending on its state and temperature. However, some common substances and their densities at room temperature are: water (1000 kg/m3), gasoline (750 kg/m3), and diesel (830 kg/m3).

5. Is there an online calculator for converting kg/(kWh) to litres/100m?

Yes, there are several online calculators that can help you convert between different units, including kg/(kWh) and litres/100m. However, it is important to double check the results and make sure the correct units are being used.

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