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3 years ago

32. Balance the following skeleton equation as illustrated below. (Ref: 282-288)

Chemistry

2 answers:

MA_775_DIABLO [31]3 years ago

8 0

Answer:

1/2H2 (g) + 1/2Cl2 (g) —> HCl (g)

Explanation:

Step 1:

The equation for the reaction is given below:

H2 (g) + Cl2 (g) —> HCl (g)

Step 2:

Balancing the equation.

H2 (g) + Cl2 (g) —> HCl (g)

The above equation can be balanced as follow:

There are 2 atoms of H on the left side and 1 atom on right side. It can be balance by putting 1/2 in front of H as shown below:

1/2H2 (g) + Cl2 (g) —> HCl (g)

There are 2 atoms of Cl on the left side and 1 atom on the right side. It can be balance by putting 1/2 in front of Cl as shown below:

1/2H2 (g) + 1/2Cl2 (g) —> HCl (g)

Now we can see that the equation is balanced

aliina [53]3 years ago

5 0

Answer: H2 + Cl2 => 2HCl

Explanation: the equation is now balanced. 2 H and 2 Cl atoms both in the reactant and product side.

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Answer:

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Explanation:

From the question we are told that

The pressure of (NO) is $P_{NO} = 9.20 \ atm$

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The pressure of nitrosly chloride (NOCl) is $P_{(NOCl)} = 7.70 \ atm$

The reaction is

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$\Delta G^o = 2 \Delta G^o _{NOCl} - \Delta G^o _{Cl_2} - 2 \Delta G^o _{NO}$

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The Standard state free energy for $Cl_2$ is constant with a value

$\Delta G^o _{Cl_2} = 0kJ/mol$

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$\Delta G^o _{NOCl} =66.1kJ/mol$

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$\Delta G^o = 2 * 66.1 - 0 - 2 * 87.6$

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The pressure constant is evaluated as

$Q = \frac{Pressure \ of \ product }{ Pressure \ of \ reactant }$

Substituting values

$Q = \frac{(7.7)^2 }{(9.2)^2 (9.15) } = \frac{59.29}{774.456}$

$= 0.0765$

The free energy for this reaction is evaluated as

$\Delta G = \Delta G^o + RT ln Q$

Where R is gas constant with a value of $R = 8.314 J / K \cdot mol$

T is temperature in K with a given value of $T = 25+273 = 298 K$

Substituting value

$\Delta G = -43 *10^{3} + 8.314 *298 * ln [0.0765]$

$= -43-6.36$

$\Delta G = -49.36 kJ$

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