Answer:
<em>Varying frequency</em> between both waves accounts for difference in speed.
Explanation:
The speed of a wave is dependent on four major factors:
- wavelength
- frequency
- medium, and
- temperature
Assuming equal temperature and medium of travel of these sound waves, and given that the wavelength (that is distance of travel) is equal, the only varying factor would be their frequency.
Wave speed is calculated by multiplying the wavelength times the frequency
⇒ Speed = λ * <em>f</em>
A. When the substance is in its gaseous state.
<u>Explanation:</u>
When a substance is expanding against its constant volume and pressure, its temperature increases except when the substance is in gaseous state and not in liquid or solid state. So the internal energy increase in the system not only increases and maintaining the volume and pressure of the system remains constant in its gaseous phase. In the first law of Thermodynamics, it is used specifically that to especially in the case of gaseous system.
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<span>The solution forms bigger crystals that have pointed ends.</span>
Answer:
In the modern period table, the elements are arranged in the increasing order and depending on their physical and chemical properties they are classified into the different groups and atoms.
Alkali metals differ from alkaline earth metal in the atomic structure and their properties as all the alkali metals consist electron in the outer-most shell. And the earth alkaline metals has two outer electron in their shell. So, for achieving the configuration of noble gas the alkali metals loses one electron and the alkaline metal lose two electrons.
The question is incomplete, the complete question is:
At a certain temperature this reaction follows second-order kinetics with a rate constant of 14.1
:
Suppose a vessel contains 
at a concentration of 1.44 M . Calculate the concentration of
Answer:
The concentration of in the vessel 0.240 seconds later will be 0.2452 M.
Explanation:
Integrated rate law for second order kinetics is given by:
k = rate constant
= initial concentration
a = Concentration after time t.
We have :
Initial concentration = 
Final concentration at t = a =?
t = 0.240 s
Rate constant of the reaction = k = 14.1
The concentration of in the vessel 0.240 seconds later will be 0.2452 M.
