EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
4th Edition
ISBN: 9781119192107
Author: BULLARD
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Question
Chapter 5, Problem 5.54P
Interpretation Introduction
(a)
Interpretation:
The final reactor pressure should be calculated.
Concept introduction:
The
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
Interpretation Introduction
(b)
Interpretation:
The percentage conversion of propylene when P = 35.1 atm should be explained.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
Interpretation Introduction
(c)
Interpretation:
A graph of pressure versus fractional conversion of propylene should be drawn.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
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4.38 g of a gas (28.1 g mol–1) was dissolved in liquid water in a calorimeter with a calorimeter constant of 76.0 J K–1. Prior to mixing everything was equilibrated to 21.2 °C.
The resulting solution with a mass of 23.4 g was observed to be at a temperature of -6.8 °C and have a specific heat capacity of 4.61 J g–1 K–1.
Determine q per mole for this dissolution process.
a. -5150 J/mol
b. -1.94 × 104 J/mol
c. 2.89 × 105 J/mol
d. -3.39 × 105 J/mol
e. 3.30 × 104 J/mol
A newly made Styrofoam ball calorimeter was first calibrated by mixing 10.0 mL of 0.40 M hydrochloric acid and 0.1008 g magnesium oxide (MW = 40.30 g/mol; specific heat = 0.276 kJ/g°C). The reaction enthalpy (ΔHrxn) of HCl and MgO is -139.6 kJ/mol. The temperature change was recorded to be 5.5 °C.
After calibration, the calorimeter was used to determine the reaction enthalpy of nitric acid and potassium hydroxide by mixing 5.0 mL of 0.40 M HNO3 and 5.0 mL of 0.80 M KOH. The temperature change was recorded to be 1.0 °C.
What is the limiting reactant in the determination of the reaction enthalpy?
What is the enthalpy of the reaction between nitric acid and potassium hydroxide? (in kJ/mol)
A coffee-cup (constant pressure) calorimeter is used to carry out the following reaction in 50 mL water
(where X is a hypothetical metal):
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In this process, the water temperature rose from 25.0 °C to 35.4 °C. If 0.00534 mol of "X" was
consumed during the reaction, what is A₁H of this reaction in kJ mol-¹ with respect to "X"?
The specific heat of water is 4.184 J g-¹ °C-¹
Chapter 5 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
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