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How Collision frequency and collision number are different parameters of a gaseous substance?
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Is photoelectric effect an inelastic collision?
Yes definitely it is elastic since initial photon does not return with the same frequency or wavelength.
Name at least two ways that thermal energy in air can be decreased?
The thermal energy in air could be decreased by cooling it by contact with a chill plate; or if the air pressure were decreased, the frequency of collision would decrease.
If something vibrates one million times per second it has a frequency of?
1Mhz (full wave) or 500kHz (half wave) but you didn't describe any type of oscillation so therefore it has no frequency except a vibration. What does Vibration mean? A sound vibration, does that mean noise energy? A material shake, a high noise energy noise pitch from collision or hum?
What happens the wave when you decrease the wavelength?
Its frequency increases. Its energy increases (all other parameters being equal).
How do you get different pitches?
By changing the frequency of the vibration. High frequency = high pitch. Low frequency = low pitch.
Why is the collision frequency in a gas likely to less than in a concentrated liquid?
Molecules or atoms in a gas are farther apart than in a liquid, so the collision frequency is lower.
Decreasing particle size collision frequency of reactants?
increases
How does the concentration of reactants affect the rate of a reaction.?
Increasing the concentration increases the molecules' collision frequency.
Is photoelectric effect an inelastic collision?
Yes definitely it is elastic since initial photon does not return with the same frequency or wavelength.
Increasing the temperature increases the rate of a reaction by?
An increase in temperature is an increase in kinetic energy. This causes there to be an increase in the collision frequency as well, so the rate of reaction goes up.
How does temperature increase the collision frequency?
Temperature is the measurement of kinetic energy (meaning movement). Increased temp means the molecules are moving at a higher rate so they will bump into each other more frequently.
How can you classify smell based on different physical parameters like frequency amplitude or wavelength?
Smell has nothing to do with frequency, amplitude, or wavelength. It is more about detecting the presence of certain types of molecules.
Name at least two ways that thermal energy in air can be decreased?
The thermal energy in air could be decreased by cooling it by contact with a chill plate; or if the air pressure were decreased, the frequency of collision would decrease.
What happens to enzymes at -0 degrees?
At 0°C enzyme action is low because the movement of molecules is low. This causes the collision frequency between enzyme and substrate to be low. Increasing the temperature speed up the movement of molecules and thus the collision frequency increases therefore enzyme action increases. Human bio enzymes work best at 37 degrees Celsius. As the temperature raises the shape of the enzyme changes and the enzyme becomes denatured. Temperature above 50 degrees Celsius will denature most human enzymes.
At what frequency can sound induce fear?
I would suspect that sounds in the frequency range of the human scream (3-4 KHZ) could do this. However, any sound that accompanies another action that is scary will continue to trigger a fear reaction even when only the sound alone occurs. Think of the low-bass sound in Jaws each time the killer shark appeared. By the middle of the movie, you were probably afraid as soon as that music began. Consider also the sound of a car horn that preceded an auto collision you were in, and how that sound can instantly cause the fear and recollection of the collision.
What are the parameters of analog signal?
The parameters of analog signals are 1.Amplitude 2.Wavelegth 3.frequency 4.phase angle
What is Planetary Collision Theory?
The Collision Theory states that the rate of molecules colliding with sufficient kinetic energy successfully is proportional to the collision frequency multiplied by the fraction of collisions. The assumptions are that the molecules are spheres and traveling in straight lines.
