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
Aleksandr-060686 [28]
3 years ago
7

Which parameter is indicative of how far and in what direction a reaction will progress?

Chemistry
1 answer:
nekit [7.7K]3 years ago
6 0

Answer:

Option b, The change in free energy of the reaction (ΔG)

Explanation:

Gibbs free energy is a measure of amount of usable energy in the system.

It is related with enthalpy (H), entropy (S) and temprature (T) as:

G = H - TS

The Gibbs free energy change (ΔG) provide spontaneity of a chemical reaction.

If ΔG is negative, then reaction is spontaneous that means reaction is moving towards forward direction.

If ΔG is positive, then reaction is non-spontaneous that means reaction is moving in backward direction.

If ΔG is zero, then reaction is at equilibrium.

Change in enthalpy only gives informtion about heat involed in a chemical reaction, it does not give information about direction of the reaction.

So, among the given options, option b is correct.

You might be interested in
Riley took a train ride to Florida for vacation. It
jonny [76]
23 kilometers an hour or to be exact 23.07 kilometers an hour
5 0
2 years ago
Read 2 more answers
Assuming linear behavior and a pathlength of exactly 1 cm, what molar concentration will measure an absorbance of
MakcuM [25]
For this problem, we use the equation derived from Beer's Law as written below:

A = ∈LC,
where
A is the absorbance
∈ is the molar absorptivity
L is the path length of the cuvette
C is the concentration of the sample solution placed in the cuvette

To determine C, we have to know the rest of the parameters. Generally, the equation for C would be:

C = A/∈L = A/∈(1 cm)
C = A/∈

If you know the absorbance and the molar absorptivity in mol/L·cm, you can determine the value of C.
7 0
3 years ago
Una masa de aire ocupa un volumen de5litro a una temperatura de 120c Cual será el nuevo volumen si la temperatura se reduce ala
zalisa [80]

Answer:

1. V_2=2.5L

2. V_2=8000mL

3. V_2=176.3L

Explanation:

¡Hola!

En este caso, dada la información para estos problemas, procedemos de la siguiente manera, basado en las leyes de los gases ideales:

1. Una masa de aire ocupa un volumen de 5 litros a una temperatura de 120 °C Cual será el nuevo volumen si la temperatura se reduce a la mitad:

Aqui, utilizamos la ley de Charles, asegurándonos que la temperatura está en Kelvin:

\frac{T_2}{V_2} =\frac{T_1}{V_1} \\\\V_2 =\frac{V_1T_2}{T_1} \\\\V_2 =\frac{5L*196.5K}{393K} \\\\V_2=2.5L

2. Un gas ideal ocupa un volumen de 4000 ml a una presión absoluta de 1500 kilo pascal Cual será la presión si el gas es comprimido lentamente hasta 750 kilo pascal a temperatura constante?

Aquí, utilizamos la ley de Boyle, dado que la temperatura se mantiene constante, calculando el volumen, ya que lo que se da es la presión final:

\neq P_2V_2=P_1V_1\\\\V_2=\frac{P_1V_1}{P_2}\\\\ V_2=\frac{4000mL*1500kPa}{750kPa}\\\\V_2=8000mL

3. Un gas ocupa un volumen de 200 litros a 95°C y 782 mmHg Cual será el volumen ocupado por dicho gas a 65°C y 815 mmHg:

Aquí, utilizamos la ley combinada de los gases ideales, asegurándonos que las temperaturas están en Kelvin:

\frac{T_2}{P_2V_2} =\frac{T_1}{P_1V_1} \\\\V_2 =\frac{P_1V_1T_2}{P_2T_1} \\\\V_2 =\frac{782mmHg*200L*338K}{815mmHg*368K}\\\\V_2=176.3L

¡Saludos!

6 0
3 years ago
HELP PLZ!!!
musickatia [10]

Answer:

69.....................

4 0
3 years ago
A student made a graph to show the chemical equilibrium position of a reaction. The student forgot to label the y-axis of the gr
Kazeer [188]

Answer:

D. concentration, as the concentrations of reactants and products remain unchanged after equilibrium is reached.

Explanation:

I put it for the test and i got right hehe

7 0
3 years ago
Other questions:
  • You have nitrogen gas (N2) at a pressure of 0.5 atm, a volume of 25000 mL, and a temperature of 300 K, how many grams of nitroge
    5·1 answer
  • How<br> myny moles are present in 5.6x1022 atoms of Ne? (0.09 moles Ne)<br> Sot ne10.05
    10·1 answer
  • How many grams of sucrose (C12H22O11) are in 1.55 L of 0.758 M sucrose solution?
    7·1 answer
  • The pH of saliva is normally in the range of 6.4 to 7.0. However, when a person is ill, the person's saliva becomes more acidic.
    9·1 answer
  • Temperatures in June in the Paradise City are distributed nearly normally with mean 82 degrees and standard deviation 6 degrees
    10·1 answer
  • Explain your reasoning for your formula prediction for Ba+2 and S-2
    12·2 answers
  • Could I please get some help on this?
    10·1 answer
  • Which of the following choices has the ecological levels listed from largest to smallest?
    5·1 answer
  • Why do you think it is necessary to break up the fat into tiny droplets?
    7·1 answer
  • What properties of water are related to Oxidation?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!