Why is radiation the fastest form of transfer of heat??

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.