400 watt hour per kg

To calculate the energy in watt-hours per kilogram (Wh/kg), we need to understand the basic formula and steps involved. Here is a breakdown of the calculation:

1. Identify the energy source: In this case, we are assuming you have an energy source with a specific energy capacity of 400 watt-hours per kilogram (Wh/kg).

2. Determine the weight: Next, you need to determine the weight of the energy source. For example, if you have 1 kilogram of the energy source, then the weight would be 1 kg.

3. Calculate the energy: To calculate the energy, you multiply the specific energy capacity (400 Wh/kg) by the weight. In this example, you would multiply 400 Wh/kg by 1 kg.

Energy = Specific energy capacity * Weight

Energy = 400 Wh/kg * 1 kg

Energy = 400 Wh

1. Convert to watt-hours per kilogram: The result from step 3 is in watt-hours (Wh). To express it in watt-hours per kilogram (Wh/kg), you simply divide the energy by the weight.

Energy per kilogram = Energy / Weight

Energy per kilogram = 400 Wh / 1 kg

Energy per kilogram = 400 Wh/kg

So, in this case, the energy source has a specific energy capacity of 400 watt-hours per kilogram (Wh/kg). The calculation shows that if you have 1 kilogram of the energy source, it would contain 400 watt-hours of energy.

I hope this explanation helps! Let me know if you have any further questions.