A popular brand of cola contains 6.50 g of carbon dioxide dissolved in 1.00 L of soft drink. If the evaporating carbon dioxide is trapped in a cylinder at 1.00 atm and 20.0C, what volume does the gas occupy?

(a) Find the density in SI units of air at a pressure of 1.00 atm and a temperature of 20 , assuming that air is 78% N2, 21% O2, and 1% Ar, (b) Find the density of the atmosphere on Venus, assuming that it's 96% CO2 and 4% N2, with a temperature of 737 K and a pressure of 92.0 atm.

A cubic container of volume 2.00 L holds 0.500 mol of nitrogen gas at a temperature of 25.0 . What is the net force due to the nitrogen on one wall of the container? Compare that force to the sample's weight.

Assuming the human body is primarily made of water, estimate the number of molecules in it. (Note that water has a molecular mass of 18 g/mol and there are roughly 1024 atoms in a mole)

Stars A and B have the same temperature, but star A has twice the radius of star B. (a) What is the ratio of star As power output to star Bs output due to electromagnetic radiation? The emissivity of both stars can be assumed to be 1. (b) Repeat the question if the stars have the same radius, but star A has twice the absolute temperature of star B. (c) Whats the ratio if star A has both twice the radius and twice the absolute temperature of star B?

(b) A unidirectional graphite/epoxy bar of reference length 0.25 m and cross sectional area A=300x10-6 m², has been cured in an autoclave at 180 °C. The volume fraction of the fibre is V;=0.55. The fibre has properties Ef=280×10° N/m?, af=-1x10-6/°C. The epoxy matrix has properties Em=3.0x10º N/m2, am =50×10-6 /°C. (i) At an ambient temperature of 30 °C, what is the overall strain in the bar? (ii) What is the resulting stress in the fibre? (iii) At the same ambient temperature, what tensile load on the bar would result in zero stress in the fibre?

Super Invar, an alloy of iron and nickel, is a strong material with a very low coefficient of thermal expansion [0.2×10-6(C˚)-1]. A 2.0m long tabletop of this alloy is used for sensitive laser measurements where extremely high tolerances are required. How much will this alloy table expand along its length if the temperature increases 5.0˚C?

11. (I) Super Invar, an alloy of iron and nickel, is a strong material with a very low coefficient of thermal expansion (0.20 x 10-6/C"). Á 1.8-m-long tabletop made of this alloy is used for sensitive laser measurements where extremely high tolerances are required. How much will this alloy table expand along its length if the temperature increases 6.0 C°? Compare to tabletops made of steel.

(b) A trucker loaded a tank with diesel fuel on a hot day in City A. The tank is 1.800 m in diameter and 5.000 m in length. He then drove and reached to City B, where the temperature was 13.0 K lower than City A and delivered the entire load. [The coefficient of volume expansion of the diesel is 9.50 x 10-4 °C-1]. Determine the (i) volume of the diesel fuel (in liters) that he delivered. (ii) percentage of fractional change in the volume of diesel fuel.