During science class billy used litmus paper to determine the ph of an unknown liquid. the blue litmus paper turned red but there was no change in the color of the red litmus paper. the liquid billy tested is probably

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

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