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CHE261 Dry Laboratory Activity No. 8 1. Consider the following pair of reactions: \[ \begin{array}{c} X \rightarrow 2 Y \text { (desired) } \\ X \rightarrow Z \text { (undesired) } \end{array} \] Suppose $ 150 \mathrm{~mol} $ of $ X $ is fed to a batch reactor and the final product contains $ 8 \mathrm{~mol} $ of $ X, 120 $ $ \mathrm{mol} $ of $ B $, and $ 7 \mathrm{~mol} $ of $ C $. Calculate a. The fractional conversion of $ X $. b. The percentage yield of $ Y $. c. The selectivity of $ Y $ relative to $ Z $. d. The extents of the first and second reactions. 2. Ethane is burned to form carbon dioxide and water in a batch reactor: \[ \mathrm{C} 2 \mathrm{H} 6+\mathrm{O} 2 \rightarrow \mathrm{CO} 2+\mathrm{H} 2 \mathrm{O} \] The feed to the reactor and the products obtained are shown in the following flowchart: \[ \begin{array}{l} 150 \mathrm{~g} \mathrm{C} 2 \mathrm{H} 6 \\ 728 \mathrm{~g} \mathrm{O} 2 \end{array} \] a. How much ethane was consumed? What is the fractional conversion of ethane? b. How much oxygen was consumed? What is the fractional conversion of oxygen? c. Write the extent of reaction equation for ethane, oxygen, and $ \mathrm{CO} 2 $. Use each equation to determine the extent of reaction, $ \xi $ substituting inlet and outlet values from the flowchart. d. How many independent molecular species balances can be written? How many independent atomic species balances can be written? e. Write the following balances and verify that they are all satisfied. The solution of the first one is given as an example. (i) Ethane. ( $ \mathrm{C} 2 \mathrm{H} 6) $ (ii) Atomic oxygen (O). (iii) Molecular oxygen (O2). (iv) Water. (v) Atomic hydrogen

          CHE261 Dry Laboratory
Activity No. 8
1. Consider the following pair of reactions:
\[
\begin{array}{c}
X \rightarrow 2 Y \text { (desired) } \\
X \rightarrow Z \text { (undesired) }
\end{array}
\]
Suppose \( 150 \mathrm{~mol} \) of \( X \) is fed to a batch reactor and the final product contains \( 8 \mathrm{~mol} \) of \( X, 120 \) \( \mathrm{mol} \) of \( B \), and \( 7 \mathrm{~mol} \) of \( C \). Calculate
a. The fractional conversion of \( X \).
b. The percentage yield of \( Y \).
c. The selectivity of \( Y \) relative to \( Z \).
d. The extents of the first and second reactions.
2. Ethane is burned to form carbon dioxide and water in a batch reactor:
\[
\mathrm{C} 2 \mathrm{H} 6+\mathrm{O} 2 \rightarrow \mathrm{CO} 2+\mathrm{H} 2 \mathrm{O}
\]
The feed to the reactor and the products obtained are shown in the following flowchart:
\[
\begin{array}{l}
150 \mathrm{~g} \mathrm{C} 2 \mathrm{H} 6 \\
728 \mathrm{~g} \mathrm{O} 2
\end{array}
\]
a. How much ethane was consumed? What is the fractional conversion of ethane?
b. How much oxygen was consumed? What is the fractional conversion of oxygen?
c. Write the extent of reaction equation for ethane, oxygen, and \( \mathrm{CO} 2 \). Use each equation to determine the extent of reaction, \( \xi \) substituting inlet and outlet values from the flowchart.
d. How many independent molecular species balances can be written? How many independent atomic species balances can be written?
e. Write the following balances and verify that they are all satisfied. The solution of the first one is given as an example.
(i) Ethane. ( \( \mathrm{C} 2 \mathrm{H} 6) \)
(ii) Atomic oxygen (O).
(iii) Molecular oxygen (O2).
(iv) Water.
(v) Atomic hydrogen

$CHE261 Dry Laboratory Activity No. 8 1. Consider the following pair of reactions: X → 2 Y (desired) X → Z (undesired) Suppose 150 mol of X is fed to a batch reactor and the final product contains 8 mol of X, 120 mol of B, and 7 mol of C. Calculate a. The fractional conversion of X. b. The percentage yield of Y. c. The selectivity of Y relative to Z. d. The extents of the first and second reactions. 2. Ethane is burned to form carbon dioxide and water in a batch reactor: C 2 H 6+O 2 →CO 2+H 2 O The feed to the reactor and the products obtained are shown in the following flowchart: 150 gC 2 H 6 728 gO 2 a. How much ethane was consumed? What is the fractional conversion of ethane? b. How much oxygen was consumed? What is the fractional conversion of oxygen? c. Write the extent of reaction equation for ethane, oxygen, and CO 2. Use each equation to determine the extent of reaction, ξ substituting inlet and outlet values from the flowchart. d. How many independent molecular species balances can be written? How many independent atomic species balances can be written? e. Write the following balances and verify that they are all satisfied. The solution of the first one is given as an example. (i) Ethane. ( C 2 H 6) (ii) Atomic oxygen (O). (iii) Molecular oxygen (O2). (iv) Water. (v) Atomic hydrogen$

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