What effect is seen if the tube is filled with air
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According to social exchange theory, altruistic behaviors benefit the individual who performs them.

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.