Ideal Gases
The relationship between volume and temperature for an ideal gas at constant pressure and mols.
What is directly proportional?
State the two primary variables related by the Clausius-Clapeyron equation.
What is vapor pressure and temperature?
A reaction that uses heat energy to proceed is endothermic or exothermic.
What is endothermic reaction?
Calculate the pressure in atm exerted by 0.5 mols of an ideal gas in a 10.0 L container at 27C.
What is 1.23 atm
A plot of ln(Pvap) vs 1/T yields the following linear equation: y = -3773x + 18.6
What is the heat of vaporization based on this?
(R = 8.314 J/mol.K)
What is 31.4 kJ/mol?
Carbon Monoxide and Hydrogen gas reaction to produce solid carbon and water vapor. What do you predict the sign of entropy change to be?
What is negative? (more order due to solid formation)
When this is too small, the ideal gas law is not accurate for describing the properties of gases.
What is temperature or volume?
In the Clausius-Clapeyron equation, what is the exact value and units of the constant R?
What is 8.314 J/(mol⋅K)?
How is 𐤃G related to 𐤃Suni?
What is -T*𐤃Suni?
The van der Waals “a” parameter for H2O is (larger or smaller) than that of H2S
What is larger?
The process of dissolving ammonium sulfate in water will result in a _______________ in temperature
What is decrease?
Given a process where deltaS = -60 J/K and deltaH = 18 kJ, at what temperatures will this process be spontaneous?
What is at temperatures below 300 K (or 27C)
A mixture of 40.0 g of oxygen gas and 40.0 g of helium has a total pressure of 0.90 atm. What is the partial pressure of oxygen gas?
What is 0.10 atm?
alculate the ΔH for the reaction:
4 NH3 (g) + 5 O2 (g)--> 4 NO (g) + 6 H2O (g)
Given these steps:
N2 (g) + O2 (g) --> 2 NO (g) ΔH = − 180.5 kJ/mol N2 (g) + 3H2 (g) -> 2 NH3 (g) ΔH = − 91.8 kJ /mol H2 (g) + O2 (g)--> 2 H2O (g) ΔH = − 483.6 kJ/mol
What is − 137 kJ/mol?
What mass of ice would need to melt in 124,500 kg of water to cool the water from 12.5 °C to 9.5 °C ?
(deltaH fusion = 6.01kJ/mol)
what is 4700 kg of ice?