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Chemistry

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Melyssa Goodwin

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4y ago
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Cards in this guide (10)
Does marijuana slow your reaction time down

Marijuana may slow down your reaction time, depending on how long after consumption you are referring to.

How does one-dimensional heat transfer differ from two-dimensional heat transfer

One dimensional heat transfer is when the temperature varition is in one direction only while two dimensional heat transfer is when temperature varies mainly in two directions (i.e x,y or r,z).

Use the reaction I2s I2 g H 62.4 kJ mol S 0.145 kJ molK for Question 10. Which direction of the reaction is favored at 298 K room temperature

It is spontaneous at 2000 K.

What describes the difference between the mechanics of airplane flight and rocket flight

The difference is that you are a mamaguevo y yo se lo meto a tu hermana.

What instrument is used to measure electrical frequency

Frequency counter

What chemical reaction describes where energy is absorbed

You think probable to an endothermic chemical reaction.

If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this in

1410 kJ

How is the H fusion used to calculate the energy released when a mass of liquid freezes

grams liquid x mol/g x H fusion

How is temperature affect the spontaneity of a reaction with positive H and S

∆G = ∆H - T∆S and ∆G has to be negative for the reaction to be spontaneous. So, ultimately the effect of temperature will depend on the value of ∆H. If ∆H is negative, and ∆S is positive, then temperature won't matter, and reaction will be spontaneous. If ∆H is positive, and ∆S is positive, then a high temperature will favor spontaneity. If ∆H is negative and ∆S is negative, then a low temperature will favor spontaneity. So, the answer to your question is the higher the temperature the more likely the reaction will occur spontaneously.

Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom the molecule is nonpolar.

covalent

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