Heat exchangers are used to transfer heat between:
a. separation equipment
b. hot and cold streams
c. chemical reactions
d. temperature and pressure
a. Incorrect. When there is a temperature difference between two fluids, heat is transferred from the fluid with the higher temperature to the fluid with the lower temperature.
b. Correct. When there is a temperature difference between two fluids, heat is transferred from the fluid with the higher temperature to the fluid with the lower temperature.
c. Incorrect. When there is a temperature difference between two fluids, heat is transferred from the fluid with the higher temperature to the fluid with the lower temperature.
d. Incorrect. When there is a temperature difference between two fluids, heat is transferred from the fluid with the higher temperature to the fluid with the lower temperature.
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