Answer:
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Explanation:
Answer:
It is letter B.
Explanation:
believe my answer cause I answered this kind of question in ny exam
When a substance is hotter it has more energy then a substance that is cooler thermal energy is found in the state for example:gas has more energy in the gas state then the solid state,All molecules contain some amount of kinetic energy, that is to say, they have some intrinsic motion. ... Thus, the heat of an object is the total energy of all the molecular motion inside that object. Temperature, on the other hand, is a measure of the average heat or thermal energy of the molecules in a substance.
Neutrons = 118
<h3>Further explanation </h3>
The elements in nature have several types of isotopes
Isotopes are elements that have the same Atomic Number (Proton)
Atomic mass is <em>the average atomic mass of all its isotopes </em>
The most abundant isotope of gold (Au) is isotope Au-197
So the atomic mass of Au = 197
and the atomic number of Au = 79
Atomic mass is the sum of protons and neutrons
Atomic Number (Z) = Atomic mass (A) - Neutrons
Neutrons = A - Z
So neutrons for Au-197 :
Answer:
V₂ = 29.88 L
Explanation:
Given data:
Initial volume = 20 L
Initial pressure = 14 KPa
Initial temperature = 205 K
Final temperature = 350 K
Final volume = ?
Final pressure = 16 KPa
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 14 KPa × 20 L × 350 K / 205 K × 16 KPa
V₂ = 98000 KPa .L. K /3280 K.KPa
V₂ = 29.88 L