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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 happens to the density of solids liquids and gases when they are heated?
Generally, the density of solids, liquids, and gases decreases as they are heated. When heated, the particles in these substances gain energy and move more, causing the substance to expand, which leads to a decrease in density.
Would a substance that decreases membrane permeability to sodium increase or decrease the generating of a nerve impulse?
A substance that decreases membrane permeability to sodium would decrease the generation of a nerve impulse. This is because sodium ions play a crucial role in depolarizing the membrane and initiating nerve impulses. By reducing sodium influx into the cell, the ability of the neuron to generate an action potential would be diminished.
When the temperature of a gas decreases it's?
The volume it occupies also decreases. The pressure it exerts also decreases. The rate at which it will react with other substances also decreases.
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.
What happens when the temperature of a substance decreases significantly A. Most substances will expand. B. Most substances will gain atoms. C. Most substances will contract. D. Most substances will d?
C. Most substances will contract. When the temperature of a substance decreases significantly, its particles lose kinetic energy, causing them to move closer together. This results in a decrease in volume, known as contraction.
What is happening to the substances mass and volume to cause this decrease in density?
As the mass of a substance increases while its volume stays constant, its density will also increase. Conversely, if the mass of the substance stays constant while its volume increases, the density will decrease. This is because density is directly proportional to mass and inversely proportional to volume.
What abnormal substance will decrease due to evaporation?
The mass of all substances decrease by evaporation.
What is the only way the density of a pure substance can change?
The density of a pure substance can change by altering its temperature. As temperature increases, most substances expand and therefore decrease in density, whereas as temperature decreases, most substances contract and increase in density.
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.
Why does the rate of chemical reaction decrease over time?
Because radioactive substances have half lives. This decreases the radioactivity in the substance.
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 the density of solids liquids and gases when they are heated?
Generally, the density of solids, liquids, and gases decreases as they are heated. When heated, the particles in these substances gain energy and move more, causing the substance to expand, which leads to a decrease in density.
