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What would a substance that decreases membrane premeability to sodium increase or decrease the probability of generating a nerve impulse?
A substance that decreases membrane permeability to sodium would decrease the probability of generating a nerve impulse. This is because sodium ions play a critical role in the depolarization phase of an action potential by entering the cell, so if their permeability is reduced, it hinders the ability to reach the threshold for generating an impulse.
What happends to the boiling point of a substance when pressure above it decreases?
When the pressure above a substance decreases, the boiling point of the substance will also decrease. This is because lower pressure means that less energy is required for the substance to overcome the atmospheric pressure and transition from liquid to gas phase.
When a substance changes from a solid to a liquid its density normally decreases. What is happening to the substance's mass and volume to cause this decrease in density?
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
What name is given to substance the decrease the concentartion of hydrogen ions in solution?
A substance that decreases the concentration of hydrogen ions in a solution is called a base or alkaline substance. It helps increase the pH of the solution, making it less acidic.
Is it true that boiling point remain constant in all altitudes?
No, the boiling point decrease at high altitudes.
What would a substance that decreases membrane premeability to sodium increase or decrease the probability of generating a nerve impulse?
A substance that decreases membrane permeability to sodium would decrease the probability of generating a nerve impulse. This is because sodium ions play a critical role in the depolarization phase of an action potential by entering the cell, so if their permeability is reduced, it hinders the ability to reach the threshold for generating an impulse.
WOULD A SUBSTANCE THAT DECREASES MEMBRANE PROBABILITY TO SODIUM INCREASE OR DECREASE THE PROBABILITY OF GENERATING A NERVE IMPULSE?
It would decrease the probability of generating a nerve impulse. When a neuron is activiated by a threshold stimulus, the membrane briefly becomes more permeable to sodium. If the permeability is decreased, it will be more difficult for the sodium ions to rush into the cell.
Does the temperature decrease when thermal energy decreases?
Yes, temperature is a measure of the average kinetic energy of particles in a substance. When thermal energy decreases, the average kinetic energy of the particles also decreases, leading to a decrease in temperature.
What happends to the boiling point of a substance when pressure above it decreases?
When the pressure above a substance decreases, the boiling point of the substance will also decrease. This is because lower pressure means that less energy is required for the substance to overcome the atmospheric pressure and transition from liquid to gas phase.
What causes density to decrease?
Density decreases when the mass of a substance decreases or when the volume of the substance increases. This can happen due to factors such as heating, which can cause expansion and lower the density. It can also occur when adding a less dense material to the original substance, diluting it.
What Explain what happens to the average kinetic energy, thermal energy, and temperature of a substance when the particles in the substance slow down.?
The particles in a substance slow down when the average kinetic energy of the particles decreases. As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases. As the thermal energy of the substance decreases, the temperature decreases.
What property will decrease if temperature increases?
Density will usually decrease in this case.
Does the movement of the particles increase or decrease wghile freezing?
The movement of particles decrease as temperature decreases, and vice versa. Therefore, they will decrease while freezing.
What happens to an objects temperature if the kinetic energy of its particles decreases?
If the kinetic energy of an object's particles decreases, its temperature will decrease as well. Temperature is a measure of the average kinetic energy of the particles in a substance, so a decrease in kinetic energy means a decrease in temperature.
Why does the density of liquid increase as it cools?
As something cools down, the kinetic energy of its molecules decrease. This corresponds to a decrease in volume occupied of the substance, so the density decreases.
Molecules in a substance slow down when a substance is?
Molecules in a substance slow down when a substance is cooled. Temperature is the measure of average kinetic energy of particles. Kinetic energy is the energy of motion. So when temperature decreases, the average kinetic energy decreases, so the energy of motion decreases, and the molecule slows down.
What happens to particles in a substance as thermal energy decreases?
As thermal energy decreases, the particles in a substance slow down and have less kinetic energy. This may cause them to move closer together, leading to a decrease in the substance's volume or a change in state, such as from a gas to a liquid or a solid.
