Consider the initial conditions of a gas: Variable Initial Value T 400. K V 250. L P 3.30 atm   Determine the missing value for the final pressure, given the other final conditions: Variable Final Value T 1170. K V 130. L P ?

A sample of gas ai 4.0 atm and 25.0 mL is heated from 25°C to 40°C. If the pressure remains constant, what is the final volume of the gas? Select one: a. 23.8 mL b. 26.2 mL c. 25.0 mL d. 105 mL e. 40.0 mL

A mixture of Ar and NH3 is placed in a 7.50 L flask at 22 0C. The partial pressure of Ar is 3.5 atm and the partial pressure of the NH3 is 1.9 atm. What is the total pressure of the mixture? a) 2.2 atm        b) 5.4 atm        c) -1.6 atm        d) -5.4 atm        e) 1.6 atm

An ideal sample of carbon dioxide gas at 303 K and 0.457 atm occupies a volume of 3.10 L. If the gas is compressed into a smaller volume, while at the same time it is heated to a higher temperature, the final gas pressure: Could be higher or lower than 0.457atm, depending on the final temperature and volume O Will be higher than 0.457atm O Will be lower than 0.457atm

Three samples of three different gases are listed in the table below. All the samples contain exactly 1 mole of gas and are at a temperature of -10.0°C. For each sample, decide whether the gas can be reasonably described as an ideal gas. If the gas isn't ideal, decide the most important reason why it isn't. sample A B C pressure (atm) 1.3 0.72 0.54 volume (L) 20.0 30.0 40.0 ideal? O yes O no O yes O no O O O yes O no If not ideal, the most important reason why not: O There are attractions between the particles. O The particles don't have zero volume. O There are attractions between the particles. O The particles don't have zero volume. O There are attractions between the particles. O The particles don't have zero volume. X Ś

Three samples of three different gases are listed in the table below. All the samples contain exactly 1 mole of gas and are at a temperature of -5.0°C. For each sample, decide whether the gas can be reasonably described as an ideal gas. If the gas isn't ideal, decide the most important reason why it isn't. sample A B C pressure (atm) 1.1 0.59 0.50 volume (L) 20.0 30.0 40.0 ideal? yes O no O yes O no O yes O no If not ideal, the most important reason why not: O There are attractions between the particles. O The particles don't have zero volume. There are attractions between the particles. O The particles don't have zero volume. O There are attractions between the particles. O The particles don't have zero volume. X 5

Solve and explain sample 4 and 5