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swat32
3 years ago
13

A student is studying the equilibrium described by the equation: blue + 4 Br (aqjs green + 6H20(1)

Chemistry
1 answer:
Over [174]3 years ago
6 0

This is the correct equilibrium represented in the question

Blue + 4 Br- (aq) <---> green + 6H2O (l)

Answer:

Addition of NaBr supplied the Br- ions which moved the equilibrium position towards the right hand side. The forward reaction is endothermic hence its rate decreases when the reaction mixture is placed in an ice bath.

Explanation:

Blue + 4 Br- (aq) <---> green + 6H2O (l)

Looking at the equilibrium represented above, addition of Br- moves the equilibrium towards the right hand side, that is, the green colour. Addition of NaBr increases the Br- concentration and drives the forward reaction hence the equilibrium position shifts towards the right hand side. The fact that the solution turns blue when placed in ice bath reveals that the forward reaction is endothermic. Decreasing the temperature shifts the equilibrium position towards the left hence the resurgence of the blue colour.

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5 0
2 years ago
What effect does increasing the temperature have on a reaction
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I think it will cause the reaction to be different since temp. is a physical property.
8 0
3 years ago
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(b) Why is the heat of sublimation ( ΔH fus ) of a substance greater than its ( ΔHvap ) ?
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This is because solids have less energy than liquids do, hence it takes more energy to excite a solid into its gaseous phase than it does a liquid.

When opposed to merely reducing their separation, from solid to liquid, the energy needed to totally separate the molecules as they move from liquid to gas is substantially higher. The latent heat of vaporization is therefore bigger than the latent heat of fusion for this reason.

<h3>What is heat of sublimation?</h3>

The amount of energy required to change one mole of a substance from its solid to its gaseous state under particular conditions—typically the standard ones—is known as the enthalpy of sublimation or heat of sublimation (STP). A solid's worth is based on its cohesive energy.

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The term "enthalpy of vaporization," which is often referred to as "heat of vaporization" or "heat of evaporation," refers to the amount of energy that must be applied to a liquid substance in order to cause a part of that substance to transform into a gas. Vaporization's enthalpy varies with the pressure at which the transition takes place.

Learn more about heat of sublimation: brainly.com/question/13200793

#SPJ4

The correct question is:

Why heat of the sublimation of a substance is greater than the heat of vaporization?

7 0
2 years ago
Write the word equation for this please
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