Posted by McKenna Louise on Monday, November 11, 2013 at 12:46am.
The pressure of a gas varies directly as its temperature. IF the pressure of a gas is 200 pounds per square inch (lb/in^2) at a temperature of 65.5 degrees C, what is the pressure of the gas when the temperature is 250 degrees F?

MathAlgebra  Jai, Monday, November 11, 2013 at 1:58am
The pressure of a gas varies directly as its temperature:
P = kT
Note that the temperature must be absolute (in Kelvin units). To convert, just add 273 to the degree Celsius.
Substituting the given,
200 lb/in^2 = k (65.5 + 273)
k = 200 / 338.5
k = 0.5908
Now that we know the k, we can use this to solve for the pressure in the second condition. Note that the temperature is in degree F. To convert, T,K = (5/9)*(T,F + 459.7).
P = 0.5908 * (5/9) * (250 + 459.7)
P = 232.94 lb/in^2
Hope this helps :3

MathAlgebra  McKenna Louise, Monday, November 11, 2013 at 2:35am
Thank you so very much :)
Answer This Question
Related Questions
 algebra  The volume of a gas varies directly with its temperature and inversely...
 algebra  when the temperature stays the same, the volume of the gas is ...
 Physics  According to Boyle's law, the volume V of a gas at a constant ...
 algebra  The volume V of a gas varies inversely as the pressure P and directly...
 Chemistry  A compressed gas cylinder contains 1.00 103 g of argon gas. The ...
 chemistry  A compressed gas cylinder contains 1.00 103 g of argon gas. The ...
 Math12th grade  #1. The pressure P of a compressed gas is inversely ...
 Math Word Problems  #1. The pressure P of a compressed gas is inversely ...
 algebra  The volume of gas varies directly with temperature and inversely with ...
 chemistry  i keep trying to do these problems and i don't understand them. ...
More Related Questions