Answer:
The average kinetic energy of the molecules in the system
Explanation:
According to the kinetic theory of matter, the particles of a system are in constant motion and collide steadily with one another as well as with the walls of the container.
The average kinetic energy of these molecules in motion is referred to as the temperature of the body. Hence, temperature is a measure of the average kinetic energy of the molecules of a body.
Answer: C. Quart
Explanation:
Quart is a unit of measurement for liquids and is equivalent to 2 pints.
Answer:
D
Explanation:
The chemical properties of an atom is majorly influenced by the number of electrons which are present in the valence shell of its atom. This number helps us to know if the atom is a metal , non-metal , metalloid, or a noble gas. Properties like electro-negativity and electro-positivity depends on the valence electrons. metals with fewer electrons in their valence shell, like sodium have strong electro-positivity, while non-metals which higher number of electrons in their outermost shell like chlorine have a high electronegativity
The new volume occupied by the gas is 1.2 m³.
Here Boyle's law is applied.
<h3>What is Boyle's law?</h3>
At a constant temperature, the volume of a gas is inversely proportional to the pressure exerted on it.
PV = constant
where,
P = Pressure applied
V = Volume of the gas
<h3>Calculation:</h3>
Given,
P₁ = 5.0 atm
V₁ = 0.60 m³
P₂ = 2.5 atm
To find
V₂ =?
As PV = constant
Therefore,
P₁ V₁ = P₂ V₂
5 × 0.6 = 2.5 × V₂
3 = 2.5 × V₂
V₂ = 3/2.5
V₂ = 1.2 m³
Hence, the new volume occupied by the gas is 1.2 m³.
Learn more about Boyle's law here:
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There is a specific formula to use for these type of problems.
ln (P2/ P1)= Δvap/ R x (1/T1 - 1/T2)
R= 8.314
P1= 92.0 torr
T1= 23 C + 273= 296 K
P2= 351.0 torr
T2= 45.0 C + 273= 318 K
plug the values and solve for the unknown
ln( 351.0/ 92.0)= Δvap/ 8.314 x (1/296 - 1/318)
Δvap= 47630.6 joules
