Chemistry, 15.04.2020 03:13, joeykyle05

For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. The reaction is endothermic. What do you expect to happen to the concentration of NO if the temperature is doubled? 2NOBr(g) ⇌ 2NO(g) + Br2(g)

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answered: ineedhelp2285

The given question is incomplete. The complete question is :

For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. The reaction is endothermic. What do you expect to happen to the concentration of NO if the temperature is doubled? 2NOBr(g) ⇌ 2NO(g) + Br2(g)

A) The concentration of NO will increase.

B) The concentration of NO will decrease.

C) There will be no change in [NO].

D) A catalyst will be needed to make a change in concentration.

E) The change in concentration of [NO] will depend on the size of the vessel.

The concentration of NO will increase.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle. This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

For the given equation:

$2NOBr(g)\rightleftharpoons 2NO(g)+Br_2(g)$ $\Delta H=+ve$

If the temperature is doubled, according to the Le-Chatelier's principle, the equilibrium will shift in the direction where decrease in temperature is taking place. As the forward reaction is endothermic, the equilibrium will shift in the right direction. i.e. towards products.

Thus the concentration of NO will increase.

answered: Guest

sorry idk the answer well to you i have a explaination

explanation: a formula which shows the arrangement of atoms in the molecule of a compound

answered: Guest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.