** Response to more information needed - this is a prelab question, so they are

Question

** Response to more information needed - this is a prelab question, so they are just best predictions. There are no lab data values.

Once again, you have a thin metal sphere of unknown fixed volume that contains helium gas. Just like you would do in the lab you dip the sphere into baths at various temperatures and record the resulting pressure inside the sphere The final numerical goal of this lab is to determine the Absolute Zero Temperature in C, that is the temperature at which the pressure inside the sphere will be zero. To do so you will plot the measured pressure versus baths' temperature measured in ° C. which of the following graphs best represents the graph you will obtain in the lab? Temperature, "C Temperature, oC Temperature, None of the shown Temperature, Temperature,

Explanation / Answer

PV = nRT

is V,R, n are constant --> P and T

P = nR/V * T

P = x*T

where x = slope

if T = 0, P = 0

as T increases P must increase as well

then

choose B (top graph, 2nd from left to right)

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