Standard air is the air at ________ and relative humidity of 36 percen

1.	Standard air is the air at ________ and relative humidity of 36 percent.
A.	.1 bar and 20°C
B.	bar and 20°C
C.	.1 bar and 40°C
D.	bar and 40°C
Answer» C. .1 bar and 40°C

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