Answer:
Explanation:
Diffusion flux of a gas, J is given by
where
is permeability coefficient,
P is pressure difference and x is thickness of membrane.
The pressure difference will be 10,000 Pa- 3000 Pa= 7000 Pa
At 298 K, the permeability coefficient of water vapour through polypropylene sheet is
Since the thickness of sheet is given as 1mm= 0.1 cm then
Therefore, the diffusion flux is
Answer:
1. I went to the library to study last night.
2.Helen borrowed my dictionary to look up the spelling of "occurred."
3.The teacher opened the window to let some fresh air into the room.
4..I came to this school to learn English.
5.I traveled to Osaka to visit my sister.
Explanation:
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Explanation:
a gas in a rigid container has a pressure of 632 torrs and a temperature of 45 celsius. The pressure has increased to 842 torrs. What is the new temperature of the gas
(a) The thermal efficiency of the cycle.
The thermal efficiency of the cycle is given by
NThermal= net work/ heat supplied
NThermal= WNet/QH
=2026.08/4547.82= 44.55%
(b) The backwork ratio:
compressor work/ turbine work
=1760.76/3786.84= 0.465
(c) The net power developed:
WNet= WT-WC
WNet= 3786.84- 1760.76= 2026.08 kW