document.write( "Question 41608: An enclosed gas exerts a pressure P on the walls of its container. This pressure is directly proportional to the temperature T of the gas. If the pressure is 2 pounds per square inch when the temperature is 280 K, identify the appropriate direct variation equation. \n" ); document.write( "
Algebra.Com's Answer #26887 by psbhowmick(878)\"\" \"About 
You can put this solution on YOUR website!
Pressure P is directly proportional to temperature T, so let
\n" ); document.write( "\"P+=+c%2AT\"__________(1)
\n" ); document.write( "where c = arbitrary constant of variation/proportionality.
\n" ); document.write( "When T = 280 K, P = 2 psi.
\n" ); document.write( "Substitute these values P = 2 and T = 280 in eqn. (1)
\n" ); document.write( "so \"2+=+c%2A280\"
\n" ); document.write( "or \"c+=+2%2F280\" = \"1%2F140\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Thus substituting this value in eqn. (1) we have
\n" ); document.write( "\"P+=+%281%2F140%29%2AT\"
\n" ); document.write( "or T = 140P\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "This is the appropriate direct variation equation.
\n" ); document.write( "
\n" );