Consider the following reaction, for which δh > 0: 2 so2 (g) + o2 (g) ⇄ 2 so3 (g) which of following statements is false? group of answer choices when the volume is doubled, the equilibrium shifts toward reactants. when a catalyst is added to the mixture, the equilibrium is not changed. when o2 is added to the system, the equilibrium shifts toward products. when total pressure of the system is increased by adding n2, the equilibrium is not changed. when the reaction mixture is heated, the concentration of so3 decreases.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o