Heat is the transfer of energy from an object with a temperature to an object with a temperature.
select one:
a. lower; higher
b. higher; lower
c. zero; high

How can you increase the strength of an electromagnet?

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.

The smallest particle of an element that retains its identity in a chemical reaction. true or false