I am sick of these problems. I just cannot grasp these ideas at all and I'm really trying. But it's no use. And in the end, it's always something minor I'm overlooking.(adsbygoogle = window.adsbygoogle || []).push({});

I am having issues with the following problem: Three moles of a monatomic ideal gas are heated at a constant volume of 1.90 m^3. The amount of heat added is 5.48 x 10^3 J.

(a) What is the change in temperature of the gas?

(b) Find the change in it's internal energy.

(c) Determine the change in pressure.

So here's what I know:

n = 3

V = 1.90

Q = 5.48 x 10^3

So for (a) I believe I need to find (Ti - Tf) The equation I believed I needed to use was W = 3/2nR (Ti-Tf) But that leave me not knowing what W is?

For (b) I assumed I would use deltaU = 3/2nR DeltaT but this is just a pure guess.

And for (c) well I have no idea. If I had to guess I would have picked the equation W = P DeltaV but like I said it's just a pure guess.

I would really appreciate any direction given. It really frustrates me when I can't solve a problem by myself.

Thanks in advance

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# Homework Help: Monatomic Idea Gas

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