Effusion of gases A mixture of iodine and oxygen gas are escaping into a vacuum at 298 K. If 10 particles of oxygen have escaped how many particles of iodine have escaped into the vacuum? (Use Grahams law of effusion)

6     ref book: Introduction to Chemical Engineering Thermodynamics (Van ness)

Compute the fugacity and chemical potential for CO2 at 323 K and 5 bar. At these conditions, CO2 is described by the virial equation of state truncated at the second virial coefficient. Assume that the interaction potential between CO2 molecules can be described by the spherically symmetric square-well potential.

During methane liquefaction, about 1000 kg of methane are stored at a pressure of 10 MPa and 180 K. The plant manager is worried about the possibility of explosion of the storage tank. Determine the energy released (in kg TNT equivalent) by a sudden rupture of this storage tank and the temperature and physical state of the methane immediately after the rupture.