At a certain temperature 2HI H2 + I2 only 50 a.0.25 b.0.3 c.0.5 d.1

Answers 2

Answer:

c is the correct answer of what is asking

Explanation:

Correct option is A)

2HI⇔H2 +I2

2 0 0 Initial concentration

2-2x x x At equilibrium

Since only 50% of HI is dissociated, thus

2x=1=>x=0.5

Now, from expression for equilibrium constant for the reaction we get,

Kc = x²/2–2x

=0.25

If you know the answer add it here!

Can't find the answer?

Other related questions that may help you

Hydrogen - Oxygen fuel cells are used in space craft to supply: a.power for heat and light b.electrical power c.oxygen d.water

power for heat and light

Answer:

water the correct answer is water because the formula of the water is H2O and hydrogen and oxygen combined to make H2O

In which of the following the corrosion of iron will be most rapid? a.In pure water b.In pure oxygen c.In air and moisture d.In air and saline water

  1. d.In air and saline water

[tex]\pink{ \rule{0pt}{100000pt}}[/tex]

Answer:

the correct answer is se air and moisture because both react to the corrosion of the iron

Which of the following is used as refrigerant? a.Solid CO 2 b.CHCl 3 c.SiC d.CF2Cl2

Explanation:

The correct option is D.

i.e CF2Cl2 as cholorflurocarbons were generally used as a refrigerant but as these gases lead to the depletion of ozone layer and have environmental issues therefore new refrigerants are developed and used now a days.

Answer:

CF2CI2 is used to refrigerant

In an exothermic reaction, the reactants: a.have less energy than the products formed. b.have more energy than the products formed. c.are at lower temperature than products. d.energy is released during reaction.

Answer:

correct option is B

Explanation:

So, the products formed will comparatively have less energy than reactants. - Therefore, in an exothermic reaction, the reactants have more energy than the products formed. - Therefore, the answer is option (B). Note: Remember exothermic reactions are bond-making processes and therefore, energy is released.

Answer:

This question has multiple correct options

Explanation:

Correct options are B) and D)

In an exothermic reaction, △H= negative.

Therefore, energy is released during the reaction.

The reactants have more energy than the product

Other Chemistry Questions

Log in with Google

 or

Forgot your password?

I don't have an account, and I want to Register

Choose a language and a region

English

United States

Polski

Polska

Português

Brasil

English

India

English

Philippines

Español

España

Bahasa Indonesia

Indonesia

Türkçe

Türkiye
How much to ban the user?
1 hour 1 day 100 years