A gas obeys the equation of state P(V-b) = RT. For this gas, b= 0.0391 dm3 mol-1 . (a) Find the fugacity (f) and fugacity coefficient () for the gas at 1000 °C and 1000 atm using the residual volume method. (b) Find the residual chemical potential for this gas at 1000 °C and 1000 atm. Given: Chemica potentia, µi = ( G ni ) T, P, nj≠i µrea − µidea = RT(ln) R = 8.314 J/(mol-K) and dG = RT[d(lnf)] and dG = VdP, where G is the Gibbs free energy.

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o