0
What are constant variables and y r they important in an experiment?
Wiki User
∙ 11y ago
. Constant variables are variables which cannot be changed with the experiment. To remember their name is easy just think about Constance. They are important to an experiment because without all three variables there would be no complete experiment. Also the constant variables are important to an experiment because they help complete the result. Without a constant variable you. Would not be testing correctly
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the difference between control variable and controlled variable?
A control variable is one that is set for the entire duration of the experiment. When measuring the Heat capacity of a gas (for instance) you can have Heat Capacity at constant volume or Heat Capacity at constant pressure Cv and Cp. In these cases the control variable would be Volume in the first case and Pressure in the second. A controlled variable is one that you can vary in a controlled way. In the measurement of an Ideal gas PV=nRT you have to be able to vary one of the P,V, n, or T to get meaningful readings at all. So, depending on how your experiment is set up, the ones that are the controlled variables are the ones you make measurements of and the other that is not allowed to vary is the control variables. P=(V/n)(R)T P and T are controlled, V and n are control. (PV) = nT(R) n and T are controlled, P and V are control P(V) = n (RT) P and n are controlled, V and T are control (R is a constant and doesn't vary outside of measuring systems) there are seven variation of possible experiments with an ideal gas, somebody else can finish this for me if they they think they are as clever as I am.
Relationship of temperature and pressure?
The ideal gas law states P*V=n*R*T where P is the pressure of the gas, V is the volume of the gas, n is the amount of substance of gas (also known as number of moles), T is the temperature of the gas and R is the ideal, or universal, gas constant, equal to the product of Boltzmann's constant and Avogadro's constant.
Why r decomposer important in an ecosystem?
Objects which decompose r, or any other letter of the alphabet, are not particularly important.
Explain why pressure increases as a gas is compressed into a smaller volume?
PV=nRT Where:- P=pressure V=volume n=number of moles R=gas constant T=temperature n,R and T all remain constant. So if volume is decreased, in order for the right hand side to remain a constant value, the value for pressure must increase.
Is the independent variable the thing you change?
Yes The independent variable is also known as the manipulated variable. In an experiment where you need to test different objects, the independent variable would be the different objects.
Ohm's law contains three quantities that may be varied The Ohm's law formula consist of three variables and is written...?
V=I*R OR R=V/I OR I=V/R AT constant temperature
Ohm's law contains three quantities that may be varied The Ohm's law formula consist of three variables and is written?
V=I*R OR R=V/I OR I=V/R AT constant temperature
What is the constant in bowel's law?
Boyles law is Pv= k and refers to any mass of gas under observation. It is often stated as p1V1 = p2V2 In words :- the product of pressure and volume remain the same (constant) as you change pressure or volume in your experiment. The constant k in the equation is not a universal constant (like R the universal gas constant) just a constant for that particular experiment.
What are different NAME of constant r?
R may be the Rydberg constant or the gas constant.
What is a variable?
Something that changes during an experiment. A variable is something that is bound to change and not constant In a mathematical statement a variable is something which can take on different values; it is usually represented by a letter, though a word could be used. Examples include: x + 5 (x is a variable) area_rectangle = lw = length × width (l, w, length and width are all variables), area_circle = πr² = π × radius² (r and radius are both variables) Variable means that something is liable to change, is not constant. For instance, weather is very variable in Britain. Our weather can change hourly, with rain, sun, etc.
If coefficient of correlation r between two variables is zero does it mean that there is no relationship between the variables Justify your answer?
"If coefficient of correlation, "r" between two variables is zero, does it mean that there is no relationship between the variables? Justify your answer".
Let k be the constant of proportionality and let q r s and t be positive real number variables. If q varies directly with the cube of r inversely with s and inversely with the square root of t which o?
q = k*r^3/(s*sqrt(t))
Which statements about series circuits are correct?
series circuits have 1 pathway they have constant current(Amperes) not constant voltage. Resistance=R+R+R+...
Does the gas constant R vary with temperature?
No, the gas constant, or any constant, is constant meaning it doesn't change.
What is R minus N?
It can be just about anything, depending on the values assigned to the variables ("r" and "n").
What does the R stand for in PV equals nRT?
r is the constant 0.0821
Which gas law is inversely proportional?
The ideal gas law:PV = nRT Any two variables on the SAME SIDE of the equation are inversely proportional. Note that "R" is a constant; so the following are inversely proportional: P and V n and T (And any two variables on OPPOSITE sides are directly proportional.)
