0
If there is not a constant volume, then different, incorrect data could be given when concerning concentration, molarity, molality, etc.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is it called when The volume of a gas increases as temperature increases?
Charles's Law states that (Volume)/(Temperature) is constant, assuming constant pressure and moles of gas. This means that (V1)/(T1) = (V2)/(T2). So if the volume of the gas increases, V2 is bigger than V1; to keep the ratio constant, T2 must also increase, which represents an increase in temperature.
What is the surface area to volume ratio in a cell and why is it importa NT?
The surface area to volume ratio is how big the cell's membrane's area is compared to the volume of everything inside the cell. If the volume becomes too large, the cell will not be able to release waste or receive necessary nutrients as easily. Plus, the cell's DNA can't keep up with the cell.
Why does the volume increase when the temperature increases?
Directly proportionalWell the reason is:as you usually know, when you increase volume, pressure should decrease.but in a case of constant pressure, as volume increases, well, pressure stays the same.So how does that work? The only reason pressure wouldn't change is if the temperature will increase, allowing molecules of gas to move more rapidly, and therefore creating pressure that stays constant, as the volume increases. (but if you would keep increasing temperature under constant volume, pressure would actually increase).
What is the constant variable in investigation of fungi growth mold?
The variables that you keep the same between the control and experimental groups are the constant variables.
Why do volume and mass of a substance have a linear relationship?
Because volume (mL) is multiplied by density (g/mL) to obtain mass (g). Since the formula for density does not contain (mL) raised or reduced to any power, the relationship between volume and mass (we call the relaitonship density) is linear.
When scientists record the volume on a gas why do they also record the temperature and the pressure?
because the volume of the gas is dependent upon the temperature and pressure. This is also important in the identification of the molecular mass of an unknown gaseous element.
What are two variables held constant when testing boyles law in manometer?
Temperature & mass keep constant in Boyle's law. Volume and pressure are variable.
How is the rate constant related to concentration of reactants?
As a chemical reaction proceed the concentration of the reactants keep on decreasing while those of the products keep on increasing how ever the rate of the reaction is also found to decrease this show that the rate of the reaction is directly related to the concentration of reactants
How does the mass change when the volume is increased two times?
When volume is increased two times, mass is also doubled. This is because density of a particular material always remains constant, (d=m/v), so to keep density constant, volume increase is balanced by mass increase.
How might you cause an edothermic chemical change to begin and keep going?
By supplying energy to it.Explanation:Since an endothermic reaction, by definition, NEEDS energy to go on, it will cool down (= taking heat energy from the reactants). It will stop itself as any reaction will slow down at lower(ing) temperatures.So SUPPLY of heat is at least necessary to KEEP temperature at its minimum level of 'ongoing' reaction. (to: Chasity cordero)
What is it called when The volume of a gas increases as temperature increases?
Charles's Law states that (Volume)/(Temperature) is constant, assuming constant pressure and moles of gas. This means that (V1)/(T1) = (V2)/(T2). So if the volume of the gas increases, V2 is bigger than V1; to keep the ratio constant, T2 must also increase, which represents an increase in temperature.
Since an object moving in uniform circular motion keeps a constant speed there is no force necessary to keep it in motion?
false
Since an object moving in uniform circular moyton keeps a constant speed there is no force necessary to keep it in motion?
False (apex)
Is temperature the only thing that affects density?
It is the easiest way to affect the volume which would change the density. However, if you increase the pressure but keep temperature constant the volume will also change. Any change in volume affects density.
Boyle's law states that if you keep the temperature constant for a fixed amount of gas a decrease in pressure means a increase in the volume of the gas?
yes is your answer
What are the reactants and products What effect do you think changing the amount of denture cleaner would have on time the rocket is in the air If you keep the amount of water constant do you think th?
What are the reactants and products? What effect do you think changing the amount of denture cleaner would have on time the rocket is in the air? If you keep the amount of water constant, do you think there is a maximum amount of denture cleaner that would work? At what point on the graph would the amount of denture cleaner would no longer have an effect of the time the rocket is in the air? Make a mark on the graph in green.
How do you know when a reaction has stopped?
Its quite hard to say really but if you have a line graph displaying the results all you need to look for is when the line goes straight. In other words when the variable is constant (at the same point continuously) e.g. volume of hydrogen (cm^3) against time! as the volume of hydrogen increaces so does the time untill it reaches a point when the volume of hydrogen is constant!
