Liquid n-pentane and liquid n-octane are mixed to form a stream flowing at a rate of 1,496.5 lbm/hr. An in-line density measurem
ent determines the mixture density is 0.654 g/mL. Calculate the volumetric flow rate of the liquid n-pentane feed in cm3/sec. The specific gravities of n-pentane and n-octane are 0.631 and 0.708, respectively. Assume ideal mixing.
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Answer:
Exothermic reaction for the HCl, endothermic reaction for the water
Explanation:
Heat was lost by HCl as its temperature lowered, so it was an exothermic reaction for the HCL.
Heat was gained by water as its temperature increased, so it was an endothermic reaction for the water.
m = Mass of water = 100 g
c = Specific heat of water =
= Change in temperature of water =
Heat is given by
Heat gained by water is .