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
tresset_1 [31]
2 years ago
11

Which of the following conditions will result in a reaction that is spontaneous only at high temperatures?

Chemistry
1 answer:
Korolek [52]2 years ago
6 0
You have to use the equation ΔG=ΔH-TΔS.
With that equation you know that a reaction with a positive change in enthalpy and positive change in entropy will only be spontaneous at high temperatures since ΔG needs to be negative for a reaction to be spontaneous.

I hopet this helps.  Let me know if anything is unclear.
You might be interested in
Guess how many water molecules self-ionize in one liter of water! a) 7 moles b) 1 mole c) 10,000,000 moles d) 0.0000001 moles​
Rudiy27

Answer:

D)

Explanation:

This seems like a weird question

Water is held together by covalent bonds. The amount of energy required to break these bonds so that water would split into it's respective ions is pretty high. The chances that any one of the molecules floating in 1L of water get enough energy to spontaneously burst into it's ions is slim to none.

So, D) seems like the most likely answer

6 0
2 years ago
What is the connection of ascorbic acid when one tablet is dissolved in 200cm cubed of water ?
BartSMP [9]

Answer:

              Option-D: 2.3 × 10⁻³ mol/dm³

Explanation:

Calculate moles of ascorbic acid,

Moles = Mass / M.Mass

Moles = 0.080 g / 176 g/mol

Moles = 0.00045 mole

Also,

Molarity = Moles / Vol. in dm³

Molarity = 0.00045 mol / 0.20 dm³

Molarity = 0.00227 mol.dm⁻¹ or 2.3 × 10⁻³ mol/dm³

5 0
2 years ago
Which of the following represents an organic compound?
bixtya [17]

Answer:

third one

Explanation:

h\ /h

c=c

h/ \h

6 0
3 years ago
Read 2 more answers
Hydrogen iodide, HI, is formed in an equilibrium reaction when gaseous hydrogen and iodine gas are heated together. If 20.0 g of
Kaylis [27]

Answer: D. 19.9 g hydrogen remains.

Explanation:

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

a) moles of H_2

\text{Number of moles}=\frac{20.0g}{2g/mol}=10.0moles

b) moles of I_2

\text{Number of moles}=\frac{20.0g}{254g/mol}=0.0787moles

H_2(g)+I_2(g)\rightarrow 2HI(g)

According to stoichiometry :

1 mole of I_2 require 1 mole of H_2

Thus 0.0787 moles of l_2 require=\frac{1}{1}\times 0.0787=0.0787moles of H_2

Thus l_2 is the limiting reagent as it limits the formation of product and H_2 acts as the excess reagent. (10.0-0.0787)= 9.92 moles of H_2are left unreacted.

Mass of H_2=moles\times {\text {Molar mass}}=9.92moles\times 2.01g/mol=19.9g

Thus 19.9 g of H_2 remains unreacted.

5 0
2 years ago
What are the coefficients that will balance the skeleton equation below?
Vesna [10]

Answer:

the answer is 1,3,2

Explanation:

Balance equation

5 0
3 years ago
Other questions:
  • Are elements with similar chemical properties found in the same period or group on the periodic table?
    14·1 answer
  • 1. Which occurs when the forward and reverse reactions occur at the same rate?
    5·2 answers
  • Think about the lab procedure you just read. Label each factor below V for variable or C for constant. The amount of sugar in th
    10·2 answers
  • Calculate the heat (in J) required to raise the temperature of 3.02 g of solid silver from 22.3 degrees Celsius so solid silver
    13·1 answer
  • The central atom in the chlorite anion, ClO2- is surrounded by: Question 5 options: one bonding and three unshared pairs of elec
    9·1 answer
  • 50 One beneficial use of radioisotopes is(1) detection of disease
    5·1 answer
  • What's the valency of lead in pbO2​
    11·1 answer
  • How can you find the amount of valence electrons an atom of an element contains?
    5·1 answer
  • 2 = 15 what would the expression 2 + 15 be equal to
    13·1 answer
  • How do we get energy from the food we eat?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!