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Concept explainers
(a)
Interpretation:
The heat capacity of liquid toluene at 40°C should be calculated.
Concept introduction:
The amount of heat required to increase the temperature of the system by one degree is known as heat capacity. The unit to express the heat capacity is thermal energy per degree temperature.
(b)
Interpretation:
The heat capacity of toluene vapor at 40° C should be calculated.
Concept introduction:
The amount of heat required to increase the temperature of the system by one degree is known as heat capacity. The unit to express the heat capacity is thermal energy per degree temperature.
(c)
Interpretation:
The heat capacity of solid carbon at 40°C should be calculated.
Concept introduction:
The amount of heat required to increase the temperature of the system by one degree is known as heat capacity. The unit to express the heat capacity is thermal energy per degree temperature.
(d)
Interpretation:
The change in enthalpy for toluene should be calculated.
Concept introduction:
The amount of heat required to increase the temperature of the system by one degree is known as heat capacity. The unit to express the heat capacity is thermal energy per degree temperature.
(e)
Interpretation:
The change of enthalpy for solid calcium carbonate should be calculated.
Concept introduction:
The amount of heat required to increase the temperature of the system by one degree is known as heat capacity. The unit to express the heat capacity is thermal energy per degree temperature.
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Chapter 8 Solutions
Elementary Principles of Chemical Processes, Binder Ready Version
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- 2:41 2) If the number-average degree of polymerization for styrene obtained by the bulk polymerization at 25°C is 5,000, what would be the number-average degree of polymerization if conducted in a 10% solution in toluene (900g of toluene per 100 g of styrene) under otherwise identical conditions? State any assumptions that are needed. (see Table 2-4). Table 2-4 Representative Values of Chain-Transfer Constants Monomer Styrene Chain-Transfer Agent T (°C) C x 104 Styrene 25 bas 0.279 * 50 0.35-0.78 Polystyrene 50 1.9-16.6 Benzoyl peroxide 50 0.13 Toluene 60 0.125 Methyl methacrylate Methyl methacrylate 30 0.117 70 0.2 Poly(methyl methacrylate) 50 0.22-1000 Benzoyl peroxide 50 0.01 Toluene 40 0.170 3) 2 3) Methyl methacrylate is copolymerized with 2-methylbenzyl methacrylate (M₁) in 1,4- dioxane at 60°C using AIBN as the free-radical initiator. (a) Draw the repeating unit of poly(2-methylbenzyl methacrylate). (b) From the data given in the table below, estimate the reactivity ratios of…arrow_forwardA piston–cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume becomes 1 m3. Use the data from the steam tables. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the final temperature. The final temperature is ºC. Determine the work done during this process Determine the total heat transferarrow_forwardConsider a mixture of carbon monoxide and water at 25°C:a. Does an azeotrope exist for this mixture at 25°C? If so, at what composition andpressure? If not, how do you know?b. If the total composition of the mixture is 10. mol% carbon monoxide, what will bethe pressure limits of VLE for this mixture at 25°C? show all the calculation stepsarrow_forward
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