Principles And Definitions Of Energy Flashcards
1
Q
What is biomass?
A
The mass of carbon in an organism
2
Q
How is biomass measured and what are the units?
A
Dry mass of tissue per unit area per unit time
Kg / m2 / day
3
Q
Why is it important to include “per unit time” ?
A
Allows comparisons between different time periods and ecosystems
4
Q
What are the units for the energy value of dry biomass?
A
KJ per unit area
5
Q
What are the units for the energy value of dry biomass?
A
KJ per unit area
6
Q
How is calorimetry used to measure energy value of certain biomass?
A
- Dry the sample at 100 degrees to remove excess water
- Burn in the presence of 100% oxygen
- Measure energy released by calculating the temperature change of the surrounding water
