0
The Antoine equation for methane looks like: log10(P) = 6.69561 - 405.420 / (T +267.777). P is in mm Hg, T is in degrees C within temperature ranges -181 < T < -152.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What are Antoine Coefficient for H2S?
The Nation Institute of Standards and Technology web site has the figures Note there are three coefficients - the Antoine equation gives a reasonable fit to vapour pressure.
Why is it sufficient to define a quadratic function in terms of a b and c?
Because solutions of quadratic equation depend solely on these three constants.
What is the general equation for the voltage across a capacitor after a time of two time constants when charging from zero voltage?
The equation of a capacitor is ...dv/dt = i/c... meaning that the rate of change of voltage with respect to time is proportional to current and inversely proportional to capacitance.If you build a circuit with a resistor r in series with a capacitor c charging to an ultimate voltage V from an initial voltage v=0 at t=0, then you can solve the differential equation (solution steps not included) and produce a generalized equation ...vt = V (1 - e(-t/rc) )... In the case of two time constants, you reach a value of 86% of charge voltage.
How many different types of constants are there in COBOL?
there are three types of constants in COBOL 1. numeric literals 2. figurative constants 3. non-numeric literals
What is the definition of symbolic constants in c language?
constants are values that does not chnage through out the program exceution..
What are the Antoine Coefficients for Nitrogen?
Antoine Coefficients for Nitric acid are A=6.6368 B=1.406 C= -52.15 range 274/376 (K) reference :- Vapour Pressure and Antoine Constants for Nitrogen Containing compounds
When can you say that the equation is linear?
An equation is linear when it contains only variables of degree 1 and constants. ALL linear equations will be of the form: a1x1+a2x2+a3x3+...+anxn=c where an and c are constants.
How can you find Antoine equation constants for water-hexane mixtures?
Antoine equations can only be used with pure components, not with mixtures. Considering ideal behaviour, the vapor pressure of a mixture would be P = P1*x1 + P2*x2 (Raoult's law), where P1 and P2 are the vapor pressures of the two components and x1 and x2 their molar fractions
What are the Antoine constants for air?
{| |- | log10 Pvap = A - [B / (T °C + C)] barSUSTANCIA FORMULA A BC1-Buteno C4H8 3.91780 908.800 238.540 cis-2-Buteno C4H8 4.00958 967.320 237.873 trans-2-Buteno C4H8 4.00827 967.500 240.840 |} {| |- | log10 Pvap = A - [B / (T °C + C)] barSUSTANCIA FORMULA A BC1-Buteno C4H8 3.91780 908.800 238.540 cis-2-Buteno C4H8 4.00958 967.320 237.873 trans-2-Buteno C4H8 4.00827 967.500 240.840 |}
What is the format of an exponential equation?
It is y = a*b^x where a and b are constants.
What is the general solution of a differential equation?
It is the solution of a differential equation without there being any restrictions on the variables (No boundary conditions are given). Presence of arbitrary constants indicates a general solution, the number of arbitrary constants depending on the order of the differential equation.
What is the word equation fot methane?
CH4
How may units to be used to check if an equation is written correctly?
The answer depends on the units of the variables and constants used in the equation.
The word equation for methane burning?
Methane plus oxygen produces carbon dioxide and water.
If you add two linear equations will you always get a linear equation?
One linear equation: Ax + By = C (A, B, and C are constants) Another linear equation: Dx + Ey = F (D, E, and F are constants) Their sum: (A+D)x + (B+E)y = (C + F) The coefficients (A+D), (B+E), and (C+F) are still constants, so the sum is still a linear equation.
The general equation for a straight line is?
Ax+b=y, where A and b are constants.
In a parabola equation what are you looking for?
An equation that when plotted produces a parabola is a quadratic equation of the form y = ax2 + bx + c where a, b and c are constants.
