bryan_closa

i'm a petroleum engineering student and i'm planning to work on a paper about the mathematical relationship between two properties(eg. pressure,flash point) of a certain petroleum fraction. how can i create a mathematical formula? being the flashpoint as a function of pressure?

we had a basic statistic course. and i think that's not enough. doing my preliminary search about the topic i bumped into pearson's r coefficient. the way understand it. it shows an approximation on how the two variables are related. but not in a way where you could mathematically solve for the flash point of a certain petroleum fraction (let's say methane) given the pressure.

am i looking at the right places? how should i do it?

i'm a petroleum engineering student and i'm planning to work on a paper about the mathematical relationship between two properties(eg. pressure,flash point) of a certain petroleum fraction. how can i create a mathematical formula? being the flashpoint as a function of pressure?

we had a basic statistic course. and i think that's not enough. doing my preliminary search about the topic i bumped into pearson's r coefficient. the way understand it. it shows an approximation on how the two variables are related. but not in a way where you could mathematically solve for the flash point of a certain petroleum fraction (let's say methane) given the pressure.

am i looking at the right places? how should i do it?

the game is SimCity 2013

SimCity on PC will run on Windows XP, Vista, and Windows 7.

Intel players will need, minimally, a 2.0 GHz Core2Duo, while our AMD players will need at least an Athlon 64 X2 Dual-Core 4000+

At least 2GB of RAM

10 GB of hard drive space

A DVD-ROM drive

At least a 512 MB video card featuring either an NVIDIA 7800 or better, an AMD chipset of at least an ATI Radeon HD 2x00 or better, or Intel Series 4 integrated graphics or better.

this is my PC:

Pentium(R) Dual-Core CPU E5700 @3.00Ghz 2.99Ghz

RAM 2.00GB

32-bit

We have this homework in physical chem where we should list chemical equations then compute for its heat of formation(enthalpy). Where change in enthalpy is enthalpy of products minus enthalpy of reactants. Then we look at the tables, and solve for the it.

Problem is i don't know any chemical equations or know where to look for. Do you know any?

eg. HCl + NH3 =>NH4Cl

any basic reaction you know would do. it'd really mean a lot. thanks!

This question was raised in our Reservoir Petrophysics class for homework, i can't find anything on the internet. Can anybody help? thanks.

28,000USD per month or 20,700 euro per day. i'm planning to live out from my country. how long could i have a house there with that kind of wage, and what would be the expected status and quality of my life there with that kind of wage. could i save enough for my retirement? and other related questions? thanks.

Walt always tell Jessie that cooking meth is different from cooking any other food. He also corrected Victor that it is not just following a recipe. It made me curious, what chemistry courses should you take to make a scientifically acceptable batch of methamphetamine. i'm a petroleum engineering student, and courses i have took are fundamentals of chem 1 & 2, analytic chemistry, organic chemistry, and this sem i'm taking physical chemistry. still i don't have knowledge of making meth or even synthesizing phenyl acetic acid. -.-

medically speaking, codeine-promethazine cough syrup. for a 57kg guy.

specially those containing codeine and promethazine. can you just normally buy it above the counter? thanks

what unit is the 62.4lb/cu. ft

is the lb there lb(mass) or lb(weight) ? because those two are different in thermodynamics. thanks

what unit is the 62.4lb/cu. ft

is the lb there lb(mass) or lb(weight) ? because those two are different in thermodynamics. thanks

https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-...

he simplified the 2ohms and 3 ohms as parallel, but they don't have two common points.

if it is wrong, could you please put in the right value? no solution needed if it would be too bothersome. thanks!

as a petroleum engineering student, our prof told that that current research says that it would last for about 80-130 more years. and that's a short span of time. thinking about it, more than 80% of all the industries rely on petroleum products, not just oils and fuels-these include plastics and other crude oil derivatives. 90+% of our transportation depend on fuels.

can humanity shift their petroleum-dependent technology to non petroleum dependent in such a short amount of time? these includes reinventing the transport engines, factories, common materials(plastics, which computers are made of), telecommunications, power plants, and much much more? what do you think?

i really don't know how i could

get that answer. here's the problem:

http://www.wolframalpha.com/input/?i=integral+of+4...

tnx

It is found that the power in a 2kW heating element be maintained at an initial temperature of 25deg Celsius. A voltage of 230V is required for the purpose. When the element has settled down to the steady state it is found that the voltage of 240V is necessary for the purpose. Determine the final temperature if the temperature coefficient of resistance at 25deg Celsius is 0.00054 per 1deg Celsius.

this problem was given to us after we discussed the formula R(f)=R(o)[1+a(delta)T]. my problem with this problem is i'm really having a hard time which given is which. and, is it just a algebraic-direct substitution problem? or is there more than that meets the eye? a big big thanks in advance.

The base of an incandescent lamp with a tungsten filament is marked 120V and 60W. Measurement on a wheastone bridge of the resistance of the lamp at 20deg Celsius indicates 20 Ohms. What is the normal temperature of incandescence of the filament if the resistance-temperature coefficient of tungsten is 5 x 10^-3 per 1deg Celsius at 20deg Celsius.

Two coils connected in series resistances of 600 Ohms and 300 Ohms with the temperature coefficient of 0.10% and 0.40% respectively at 20deg Celsius. Find the resistance of the combination at a temperature of 50deg Celsius. What is the effective temperature of the combination?

this problem was given to us after we discussed the formula R(f)=R(o)[1+a(delta)T]. my problem with this problem is i'm really having a hard time which given is which. and, is it just a algebraic-direct substitution problem? or is there more than that meets the eye? a big big thanks in advance.

The resistance of the field coils with copper conductors of a dynamo is 120 Ohms at 25deg Celsius. After working for 6 hours on full load, the resistance of the coil increases to 140 Ohms. Calculate the mean temperature rise of the field coil. Take the temperature coefficient of the conductor material as 0.0042 at 0deg Celsius.

this problem was given to us after we discussed the formula R(f)=R(o)[1+a(delta)T]. my problem with this problem is i'm really having a hard time which given is which. and, is it just a algebraic-direct substitution problem? or is there more than that meets the eye? a big big thanks in advance.

A coil has resistance of 18 Ohms when its mean temperature is 20deg Celsius and 20 Ohms when its mean temperature is 50deg Celsius. Find its mean temperature rise when its resistance is 21 Ohms and the surrounding temperature is 15deg Celsius.

this problem was given to us after we discussed the formula R(f)=R(o)[1+a(delta)T]. my problem with this problem is i'm really having a hard time which given is which. and, is it just a algebraic-direct substitution problem? or is there more than that meets the eye? a big big thanks in advance.