Refrigerant 22 in a refrigeration system enters one side of a counterflow heat exchanger at 12 bar, 28 c. the refrigerant exits at 12 bar, 20 c. a separate stream of r-22 enters the other side of the heat exchanger as saturated vapor at 2 bar and exits as superheated vapor at 2 bar. the mass flow rates of the two streams are equal. stray heat transfer from the heat exchanger to its surroundings and kinetic and potential energy effects are negligible. determine the entropy production in the heat exchanger, in kj/k per kg of refrigerant flowing. what gives rise to the entropy production in this application?

If the government is required to balance the budget and the economy falls into a recession, which of the actions is a feasible policy response? cut taxes to encourage consumer spending invest in infrastructure increase government spending to stimulate the economy cut spending equal to the reduction in tax revenue what is a likely consequence of this policy? unemployment falls due to the economic stimulus. the negative consequences of the recession are magnified. consumer spending increases due to their ability to keep more of their after-tax income. there is hyperinflation due to an increase in aggregate demand.

Josie just bought her first fish tank a 36 -gallon glass aquarium, which she’s been saving up for almost a year to buy. for josie, the fish tank is most likely what type of purchase

John has served as the chief operating officer (coo) for business graphics, inc., a publicly owned firm, the past 5 years. which of the following statements about john is correct? both john and the ceo of business graphics must certify to the sec that the firm's financial statements are accurate. as the coo, john will be ranked higher than the ceo but still below the cfo. in john's postition as the coo, it is highly unlikely that he would also be the chairperson of the board of directors. as the coo, john would typically be involved with accounting, finance, and asset purchase decisions.