A thermistor is a nonlinear device which changes its terminal resistance value as its surrounding temperature changes. The resistance and temperature generally have a relation in the form of
Find:
Assumptions:
You might also like to view...
If 15/4 = x/32, what is x?
A. 90 B. 120 C. 45 D. 100
A plot of voltage vs. time for an alternating current yields a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is definitely accurate?
The reaction A + B ? C occurs in the vapor phase. It is an endothermic reaction. It is beneficial to carry out the reaction in the presence of liquid water, because C is somewhat soluble in water while A and B are effectively insoluble. The Henry’s Law constant for C in water increases as the temperature increases. We are interested in maximizing the total number of moles of C in the system, regardless of whether the C is in the liquid or vapor phase. A system initially contains 10 moles each of A and B (vapor) and 100 moles of liquid water. The system is allowed to reach equilibrium at T= 298.15 K and 0.1 MPa. In a separate experiment, the system initially contains 10 moles each of A and B (vapor) and 100 moles of liquid water, and is allowed to reach equilibrium at T= 423.15 K and 0.1 MPa. A. The system at 298.15 K will have more total moles of C. B. The system at 423.15 K will have more total moles of C. C. The system at 298.15 K will have a higher mole fraction of C in the vapor phase and a lower mole fraction of C in the liquid phase than the one at 423.15 K. But it is unclear which will have a larger total number of moles of C. D. The system at 298.15 K will have a lower mole fraction of C in the vapor phase and a higher mole fraction of C in the liquid phase than the one at 423.15 K. But it is unclear which will have a larger total number of moles of C. E. None of these is definitely accurate.
Match the refrigerant cylinder with the correct color code.
A. orchid B. light blue C. green D. silver E. purple F. yellow orange G. white H. dark blue I. orange