hi, i am having trouble with this problem:(adsbygoogle = window.adsbygoogle || []).push({});

A cylinder with a diameter of 5.04 cm has a movable piston attached to a horizontal spring. The cylinder contains 1.40 liters of an ideal gas at 20.9°C and 0.99 atm pressure. Under these conditions, the spring is unstretched. The temperature of the gas is increased to 95°C and it is found that the spring compresses 3.41 cm. Determine the spring constant k.

I am not sure how to relate the change in pressure with a spring constant. So far, I tried finding the new pressure using (P1*V1)/(T1) = (P2*V2)/(T2) like this:

(.99atm*1.4L)/(273.15+20.9) = (P2*1.4L)/(273.15+95)

and got P2 = 1.239atm

How can I use this to find the spring constant? I tried using the eq. P=F/A but then I didn't know the area of the cylinder to use.

Could anyone please help me understand this problem better?

Thanks!!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Pressure and spring constant problem

**Physics Forums | Science Articles, Homework Help, Discussion**