Why should some refrigerant lines be insulated?
What will be an ideal response?
Insulation prevents the system from absorbing excess heat.
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All of the following statements about hybrid electric vehicle A/C compressors are true, EXCEPT ________.
A) Nonconductive refrigeration oil must be used with A/C compressors utilizing an electric drive motor. B) Some use a belt drive along with an electric motor C) Most are reciprocating piston designs D) Some use only an electric motor without a belt drive
Does this system exhibit positive or negative deviations from Raoult’s Law? Explain your answer.
A liquid mixture of 60% by mole cyclohexanone(1) and the rest phenol (2) is in equilibrium with its vapor at 144°C. At this temperature, the vapor pressure of the cyclohexanone is 0.752 bar and that of the phenol is 0.3166 bar. Note that the system does form an azeotrope at this temperature whose composition is 29.4% by mole cyclohexanone and whose pressure is 0.261 bar. Given the above information, estimate the equilibrium pressure and vapor-phase composition of this system.
Name three activities that hormones regulate in the body
What will be an ideal response?
A 175° angle is called what type of angle?
Fill in the blank(s) with the appropriate word(s).