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)![]() ![]() You can put this solution on YOUR website! \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 \n" ); document.write( " \n" ); document.write( " |