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Solnce55 [7]
4 years ago
15

Which reaction would cause an increase in entropy? A. SO2Cl2(g) SO2(g) + Cl2(g) B. PCl3(g) + Cl2(g) PCl5(g) C. 2CO(g) + O2(g) 2C

O2(g) D. C2H2(g) + H2(g) C2H4(g)
Chemistry
2 answers:
IrinaVladis [17]4 years ago
8 0
A. SO2Cl2(g) --> SO2(g) + Cl2(g) 
<span>1 mole of SOCl2 becomes 1 mole SO2 and 1 mole Cl2 </span>
<span>1 mole --> 2 moles </span>
<span>entropy increases </span>

Nady [450]4 years ago
6 0

Answer: A) SO_2Cl_2(g)\rightarrow SO_2(g)+Cl_2(g)

Explanation: Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

A) SO_2Cl_2(g)\rightarrow SO_2(g)+Cl_2(g)

1 mole of gaseous reactant is converting to 2 gaseous products, thus the entropy increases.

B) PCl_3(g)+Cl_2(g)\rightarrow PCl_5(g)

2 moles of gaseous reactants are converting to 1 gaseous products, thus the entropy decreases.

C) 2CO(g)+O_2(g)\rightarrow 2CO_2(g)

3 moles of gaseous reactants are converting to 1 gaseous product, thus the entropy decreases.

D. C_2H_2(g)+H_2(g)\rightarrow C_2H_4(g)

2 moles of gaseous reactants are converting to 1 gaseous product, thus the entropy decreases.

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2) State the molar ratios

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