. When a system is taken from state a to state b in the figure to the right along path acb, 100 J of heat flows into the system and the system does 40J of work. (a) How much heat flows into the system along path aeb if the work done by the system is 20 J? (b) The system returns from b to a along path bda. If the work done on the system is 30 J, does the system absorb or liberate heat? How much?

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Steady State Model

The steady-state model typically states that the entire universe is always enlarging, although it balances a fixed average density and matter that is being constantly generated to make new galaxies, star forms at a similar rate that the previous ones get indistinguishable due to the growing range and velocity of recession.