CHEMISTRY HIGH SCHOOL

Which of the following statements is true about the average kinetic energy of the particles of a gas?It is directly proportional to the size of the particles.
It is inversely proportional to the size of the particles.
It is directly proportional to the temperature of the gas.
It is inversely proportional to the temperature of the gas.

Answers

Answer 1
Answer:

Answer:

(c). directly proportional to the absolute temperature of the gas.

Explanation:

Average kinetic energy of the particles of an ideal gas is directly proportional to the temperature of the gas.

KE = k T,

k = Boltzmann's constant

T = absolute temperature of the gas.

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What is the pressure in atm exerted by 2.48 moles of a gas in a 250.0 ml container at 58c?

Answers

Explanation:

The given data is as follows.

     V = 250.0 ml,                  T = 58^{o}C = 58 + 273 = 331 K

      n = 2.48 moles,              P = ?    ,             R = 0.082 atm L /K mol

Therefore, calculate the pressure using ideal gas equation as follows.

                       PV = nRT

                        P = (nRT)/(V)

                            = (2.48 mol * 0.082 atm L/K mol * 331 K)/(250.0 ml)

                            = 0.269 atm

Thus, we can conclude that pressure of the given gas is 0.269 atm.
T = 58 + 273.15 = 331.15

R = 0.082 atm

V = 250.0 mL / 1000 = 0.25 L

P =  n x R x T / V

P = 2.48 x 0.082 x 331.15 / 0.25

P = 67.342 / 0.25

P = 269.368 atm

hope this helps!

An Arrhenius base yields which ion as the only negative ion in an aqueous solution

Answers

The answer is most likely hydroxide.

Select all that apply.The solvent is usually referred to as the component of a solution which is present:

as one liter
as the larger quantity
as the liquid which dissolves a solid
as the smaller quantity

Please help !!

Answers

Answer: as the larger quantity

Explanation:

Binary Solution is a homogeneous mixture of two components called as solute and solvent.

Solute is the component which is present in smaller proportion and is solid for solid in liquid solution.

Solvent is the component which is present in larger proportion and is liquid for solid in liquid solution.

Thus solvent is  is usually referred to as the component of a solution which is present as the larger quantity.
As the larger quantity.

Which of the following changes will always be true for an exothermic process?+deltaH
+deltaS
-deltaH
-deltaG

Answers

The right answer for the question that is being asked and shown above is that: "-deltaH." The change that will always be true for an exothermic process is a -deltaH. The change that it exhibits is always true for an exothermic process.

What is the process of breaking down glycogen without the presence of oxygen?

Answers

Answer:

anaerobic glycolysis
In my knowledge, this would be called anaerobic respiration – anaerobic meaning without oxygen and the respiration process is through glycolysis, the breaking down of glucose to form (with generalisations) 2 ATP molecules and lactic acid (with probably some other bits and pieces). I thought this was a biology concept? :D

What are the three types of nuclear radiation

Answers

its actually, alpha particles, beta particles, and gamma rays
Alpha,Beta and the Gamma
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