The plant burns anthracite coal, which has a heat of combustion of 2. 65×107j/kg. How much coal does the plant use per day, if it operates continuously?.

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 pressure proportional to the area a- inversely b- directly c- increase d-decrease

True or false graphs must include scales that increase by the same amount