Question

he pressure, P, of a gas varies directly with its temperature, T, and inversely with its volume, V, according to the equation:
P=nRTV
where n is the number of molar units and R is the universal gas constant. One molar unit of a gas has a pressure of about 1,245 joules at a temperature of 300° Kelvin and a volume of 2 liters. What is the pressure of the same number of molar units of the gas at a temperature of 400° Kelvin and a volume of 2.5 liters?

Answer 1

this is wrong. it should be PV = nRT

Answer 2

check http://chemistry.bd.psu.edu/jircitano/gases.html

Answer 3

I know it wrong but my algebra teacher posted this question. Notice the use of joules for pressure.

Answer 4

R = 0.08206 L-atm / mole-K

Answer 5

I need it solved algebraically not using physics concepts

Answer 6

well we could go posting all the possible vallues for R

Answer 7

its chem really but u know

Answer 8

pressure is not in units of joules

Answer 9

Yes i know everything about the problem is wrong. Thats why i can't understand it and why my algebra teacher is not a physics or chemistry teacher.

Answer 10

clearly if " the pressure, P, of a gas varies directly with its temperature, T, and inversely with its volume, V"
that gives you the equation P = k T/V

Answer 11

or P = nRT / V

Answer 12

there is another similarly strangely worded question (using joules for pressure)
http://openstudy.com/study#/updates/515465e3e4b0507ceba0f0f9

Answer 13

Thats th same question
but i was looking for a step by step solution so that i can do these in the future

Answer 14

i think there's some serious typos/errors in the question.

Answer 15

yeaht there is

Answer 16

I copied the question exactly a sit was. There are no special characters or symbols

Answer 17

yes i believe you, i dont know what to tell you. maybe someone with a phd in chemistry can put a large error stamp on this question :D

Answer 18

I can stay that pressure is definitely not in units of joules