document.write( "Question 1179570: The pressure P of a perfect gas varies inversely to the volume V. The pressure of a gas in a 4-L container under specific conditions is 100 atm. What is the pressure of the gas in a 45-L container under the same conditions? Use the equation P=K/V \n" ); document.write( "
Algebra.Com's Answer #809141 by greenestamps(13203)\"\" \"About 
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\n" ); document.write( "One very formal method: Use the given parameters to determine the value of the constant K and then use that constant with the one new parameter to determine the other new parameter.

\n" ); document.write( "P=K/V
\n" ); document.write( "100=K/4
\n" ); document.write( "400=K

\n" ); document.write( "P=K/V
\n" ); document.write( "P=400/45 = 80/9

\n" ); document.write( "For inverse variation, I think a problem is more easily solved by rewriting the formula as

\n" ); document.write( "PV=K

\n" ); document.write( "In that form, the relation says that the product of the pressure and the volume is a constant. So the path to the answer to the problem is shorter:

\n" ); document.write( "100(4)=P(45)
\n" ); document.write( "P=400/45 = 80/9

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