1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jok3333 [9.3K]
3 years ago
6

For this question, the "entropy term" refers to "-TΔS". Addition reactions are generally favorable at low temperatures because _

_______.
Chemistry
1 answer:
nata0808 [166]3 years ago
8 0

Answer:

Lowering the temperature typically reduces the significance of the decrease in entropy. That makes the Gibbs Free energy of the reaction more negative. As a result, the reaction becomes more favorable overall.  

Explanation:

In an addition reaction there's a decrease in the number of particles. Consider the hydrogenation of ethene as an example.

\rm H_2C\text{=}CH_2\; (g) + H_2\; (g) \stackrel{\text{Ni}^\ast}{\to} H_3C\text{-}CH_3\; (g).

When \rm H_2 is added to \rm H_2C\text{=}CH_2 (ethene) under heat and with the presence of a catalyst, \rm H_3C\text{-}CH3 (ethane) would be produced.

Note that on the left-hand side of the equation, there are two gaseous molecules. However, on the right-hand side there's only one gaseous molecule. That's a significant decrease in entropy. In other words, \Delta S < 0.

The equation for the change in Gibbs Free Energy for a particular reaction is:

\Delta G = \Delta H + (\underbrace{- T \, \Delta S}_{\text{entropy}\atop \text{term}}).

For a particular reaction, the more negative \Delta G is, the more spontaneous ("favorable") the reaction would be.

Since typically \Delta S < 0 for addition reactions, the "entropy term" of it would be positive. That's not very helpful if the reaction needs to be favorable.

T (absolute temperature) is always nonnegative. However, lowering the temperature could help bring the value of

You might be interested in
2) 183 cg =<br> kg<br> 5<br> .00183 kg<br> 0.0183 kg<br> .183 kg<br> 3) 0.25 kg =<br> g
OlgaM077 [116]

Answer:

183 cg = 0.00183 kg

0.25 kg = 250 g

Explanation:

Use conversion factors. 1kg is equal to 1 x 10^5 cg (100000) and 1 kg is equal to 1 x 10^3 grams (1000 grams).

5 0
3 years ago
AIDS is one disease caused by a virus infection. The virus attacks immune system cells known as T cells.
VLD [36.1K]

Answer:

yes,its true

Explanation:

I just want to say first off

the immune cell known as T cell also known as white blood cells

Since the first main attack from the bodies response against a virus is deploying T cells to attack

CD4 cells are the basic T cells and HIV virus which is AIDS will start to "Eat itself inside" Ofc not they will use protein spikes to form their way in

they start to create copies of themselves inside the T cell itself and creating a new protein called Env to form their ways in ofc

They are able to bypass CD4 cells is because its a basic cellular receptor for T cells making them really deadly

They now will start to attack other white cells and deploying more and more of their virus cells

7 0
3 years ago
Which of the following is not a simple machine
dedylja [7]
C: screw I believe so
5 0
3 years ago
Propanoic acid (propionic acid) has the formula CH3CH2COOH. Draw the conjugate base, that is, the structure that results from de
devlian [24]

Answer:

Conjugate base: Propionate

Explanation:

  • Conjugate base contains one less proton as compared to it's parent acid. Deprotonation occurs from most acidic region.
  • Propionic acid deprotonates to produce it's strong conjugate base propionate.
  • In propionic acid, -OH group in -COOH functional moiety dissociates to produce H^{+}. Because the O-H bond electrons remains highly polarized towards oxygen atom due to electron withdrawing inductive effect as well as resonating effect of -COOH moiety.
  • Structure of conjugate base has been shown below.

7 0
3 years ago
What type of molecule is butanoic acid?
ira [324]

Answer:

option b.

Explanation:

<em>Carboxylic acid</em>

3 0
3 years ago
Read 2 more answers
Other questions:
  • A person runs 500 ft in 50 seconds how fast are they moving
    13·2 answers
  • Which two species in this table are most similar to each other?
    11·2 answers
  • What is the charge of a hypothetical ion with 85 protons and 87 electrons?
    14·1 answer
  • What is most likely the ph of a solution containing many hydroxide ions (oh-) and few hydrogen ions (h )?
    11·1 answer
  • Out of Br2 and NaBr which compound is more likely to be more soluble in CCl4
    5·1 answer
  • This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generati
    15·1 answer
  • Convert the following pressures to pressure in standard atmosphere 151.98 kPa 456 torr
    11·1 answer
  • Crude oil is trapped between a porous rock layer and an impermeable layer.<br> True or False
    6·1 answer
  • WHaty are the Chemical properties of Oxygen?
    11·1 answer
  • 0.0000062 kg in scientific notation
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!