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Physics, 14.10.2019 00:30 chrisimichaels7497
An iron ball and an aluminum ball of mass 100 g each are heated to the same temperature and then cooled to a temperature of 20°c. the heat lost by the iron ball is 3.6 kj. the heat lost by the aluminum ball is 7.2 kj. what does this imply?
a) the specific heat of iron is greater.
b) the specific heat of aluminum is greater.
c) the iron ball was heated to a higher temperature.
d) the aluminum ball was heated to a higher temperature.
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Physics, 22.06.2019 06:30, jordanbyrd33
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)
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An iron ball and an aluminum ball of mass 100 g each are heated to the same temperature and then coo...
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