One mole of a van der Waals gas at 28.0 ∘C is expanded isothermally and reversibly from an initial volume of 0.015 m3 to a final volume of 0.100 m3. For the van der Waals gas, (∂U/∂V)T=a/V2m . Assume that a=0.556Pa⋅m6⋅mol−2, and that b=64.0×10−6m3⋅mol−1.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

girl imma just put my comment here because i need a couple point okurrttt

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but