Answer:
The question asks for moles, which can be obtained from P-V-T data using the ideal gas
equation: n =
RT
PV .
Now use the rearranged gas law to determine the number of moles in the sample:
!
n = PV
RT = (6.47 x 105 Pa)(5.65 x 10-4m3
)
(8.314 J
mol K )(21.7 + 273.15 K) = 0.149 mol.
All conditions except the pressure and volume are fixed, so P1V1 = P2V2 can be used: 3.62 L
101kPa
(647 kPa)(0.565 L)
2
1 1
2 = =
P
PV V
Explanation:
The Ancient Egyptians used simple sundials and divided days into smaller parts, and it has been suggested that as early as 1,500BC, they divided the interval between sunrise and sunset into 12 parts. ... Known as a clepsydra, it uses a flow of water to measure time.
C. Fewer habitats for wild animals to live in
Explanation:
Biodiversity does not directly impact humans in that there are fewer habitats for wild animals to live in. This is a direct impact on animals and not humans.
Biodiversity is the variation of life forms in an area. It is measured by the ability of the ecosystem to sustain different life forms and keep their interaction with the environment.
It helps to maintain and sustain life.
To humans, reducing biodiversity;
- reduces the potential of medicine derived from other organisms. When their habitat is lost, we lose them.
- fewer ecosystems to appreciate for beauty and recreation. It leads to loss of the ecosystem.
- fewer wild food species for humans to eat.
Loss of habitat directly affects wild animals and not man.
learn more:
Biodiversity hotspots brainly.com/question/10723602
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