The purpose of the condenser in a refrigeration system is to:
A) Reject heat from the condensing medium.
B) Increase the pressure and temperature of the refrigerant.
C) Absorb heat into the refrigerant.
D) Reject heat from the refrigerant.
D
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Which of the following is a correct analysis of the isothermal reactor, compared to the adiabatic reactor?
A feed stream of 50 mol% A and 50 mol% B at 500 K enter an adiabatic steady state reactor. The reaction is A + B ? C and occurs in the liquid phase. The stream leaving the reactor is at 545 K, and is at equilibrium. An engineer proposes adding temperature control to the reactor, so that it is instead an isothermal reactor at 500 K A. The reaction will be slower in the isothermal reactor, but the effect on the extent of reaction at equilibrium cannot be determined. B. The reaction will be slower in the isothermal reactor, and the extent of reaction at equilibrium will be lower than in the adiabatic reactor. C. The reaction will be slower in the isothermal reactor, but if the reaction reaches equilibrium, the extent of reaction will be higher than in the adiabatic reactor. D. It is unrealistic for a reaction to occur in the liquid phase at temperatures of 500 K and above. E. None of the above are accurate.
Different types of flares are not interchangeable.
Answer the following statement true (T) or false (F)
The rebar-tying method shown in the figure is called a _____
a. wrap-and-tie
b. standoff tie
c. bar hitch
d. nail-head tie