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vitfil [10]
3 years ago
14

Which of the following changes will always be true for a system with increasing entropy? –ΔG –ΔH +ΔG +ΔS

Chemistry
1 answer:
Kruka [31]3 years ago
3 0

<u>Answer:</u> The correct answer is +\Delta S

<u>Explanation:</u>

From the given options:

\Delta G represents the change in Gibb's Free energy of the reaction. If this value is negative, the reaction is said to be spontaneous and if the value is positive, the reaction is said to be non-spontaneous.

\Delta H represents the change in enthalpy of the reaction. If this comes out to be negative, then the reaction is said to be exothermic and if it comes out to be positive, then the reaction is said to be endothermic.

\Delta S represents the change in entropy of the reaction. If this comes out to be positive, then it means there is increase in entropy and if this comes out to be negative, then it means there is decrease in entropy.

Hence, the correct answer is +\Delta S

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Which is a characteristic of all ions?
Brut [27]

Answer:

I guess B They have a charge

7 0
3 years ago
A sample of gas has a mass of 38.8 mg. Its volume is 224 mL at a temperature of 55 °C and a pressure of 886 torr. Find the molar
Pie

Answer:

4g/mol

Explanation:

Firstly, we can get the number of moles of the gas present using the ideal gas equation.

PV = nRT

Here:

P = 886 torr

V = 224ml = 224/1000 = 0.224L

T = 55 degrees celcius= 55+ 273.15 = 328.15K

R = molar gas constant = 62.36 L⋅Torr⋅K−1⋅mol−1

n = PV/RT

n = (886 * 0.224)/(62.36 * 328.15)

n = 0.009698469964 mole

Now to get the molar mass, this is mathematically equal to the mass divided by the number of moles. We have the mass and the number of moles, remaining only the molar mass.

First, we convert the mass to g and that is 38.8/1000 = 0.0388

The molar mass is thus 0.0388/0.009698469964 = 4g/mol

3 0
4 years ago
6. What volume will 9.38g of the mineral quartz (silicon dioxide SiO2)
Tcecarenko [31]

Answer:

The answer is

<h2>3.54 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass = 9.38 g

density = 2.65 g/cm³

The volume of the quartz is

volume =  \frac{9.38}{2.65}  \\  = 3.539622641...

We have the final answer as

<h3>3.54 mL</h3>

Hope this helps you

7 0
4 years ago
PLEASE EXPLAIN what is glucose
antoniya [11.8K]

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

Glucose is the most common form of sugar in the blood and the body's primary source of energy. Glucose is derived from the meals we eat or produced by the body from other chemicals. The circulation transports glucose to the cells. Several hormones, including insulin, regulate blood glucose levels.

a simple sugar that is a component of many carbohydrates and is a vital source of energy in living things.

Blood sugar, often known as glucose, is the most common sugar present in the body. It is your body's major source of energy and comes from the food you eat. Glucose is carried by your blood to all of your body's cells, where it is used for energy.

5 0
3 years ago
Check out this app! It's millions of students helping each other get through their schoolwork. https://brainly.app.link/qpzV02Ma
marishachu [46]

Answer:

why did you post a link to brainly when we are on brainly already??????

Explanation:

8 0
3 years ago
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