Recent content by doggieslover

T = 290K, it was given in a previous problem, I forgot to incorporate it in here. I solved it already, the answer is .3mm/s, I probably just converted something wrong.

calculate the rms (root-mean-square) speed v_rms of these particles, assuming them to be spheres of diameter 5 \; \mu {\rm m} and density 2 \; {\rm g}/{\rm cm}^3 = 2000 \; {\rm kg}/{\rm m^3}. The mass of such a dust particle is 1.31 \times 10^{-13} \; \rm kg. Express your answer in millimeters...

Actually then do I still need to take the degrees of freedom into consideration other than the mass situation?

Part A Using the equipartition theorem, determine the molar specific heat, C_v, of a gas in which each molecule has s degrees of freedom. Express your answer in terms of R and s. Okay, I know that the equipartition theorem is 1/2k_B*T and molar specific heat is C_v= (1/n)(dU/dT) But I...

Then if deltaU = Q - W, deltaU = 0, Q = 0, then -W will be left alone, but my question is are there other ways to find what work is other than using pdeltaV?

I know that Q is zero already, so now deltaU is zero too since there's no change in internal energy?

But the mass of N_2 is already given in the problem. m_{\rm N_2} = 4.65 \times 10^{-26}\; {\rm kg}

The idealized cycle shown is known as the Otto cycle. (Intro 1 figure) Suppose an engine is executing this Otto cycle, using a gas (not necessarily ideal) as its working substance. From state A to state B, the gas is allowed to expand adiabatically. (An adiabatic process is one in which no...

Imagine processing the gas clockwise through Cycle 1 and then counterclockwise through Cycle 1. Compare these two processes on the basis of the heat energy transferred to the gas in the entire cycle. Choose the correct comparison symbol. Q_clockwise for Cycle 1 <,=,> Q_counterclockwise for...

What is the typical rotational frequency f_rot for a molecule like {\rm N}_2 at room temperature (25\;^\circ \rm{C})? Assume that d for this molecule is 1\; {\rm \AA} =10^{-10}\; {\rm m}. Take the atomic mass of {\rm N}_2 to be m_{\rm N_2} = 4.65 \times 10^{-26}\; {\rm kg}. Express f_rot...

okay let's say from 1 to 3, pressure is decreasing from 3p to 2p, how would I apply that to pV| from Vi to Vf? p(3V) - p(2V)?

So pV from Vi to Vf, but isn't p still constant in this case? The graph indicates that p is NOT constant.

Is it W = p1V1 - p2V2?

http://session.masteringphysics.com/problemAsset/1013990/12/1013990E.jpg Which of the following statements are true about the first half of this process, just going from state A to state F? Both T and U increase. W provides energy input. Q provides energy input. Q is larger (in...

Oh yeah I read the question wrong, I got it now, thanks.