explain on a molecular level why liquid co2 has lower entropy than gas co2
explain on a molecular level why liquid co2 has lower entropy than gas co2
a 1.6 mole sample of gas at stp has a higher or lower? entropy than 1.6 mole of gas at 273k and 835 hg
Define residence time and briefly explain why liquid-liquid separators residence time is larger than the gas-liquid separators.
un plase uansion from a liquid to a gas • an increase in the number of moles of a gas during a chemical reaction EXAMPLE 17.1 Predicting the Sign of Entropy Change Predict the sign of AS for each process: (a) H2O(g) → H2O(1) (b) Solid carbon dioxide sublimes. (c) 2 N2O(g) —> 2 N2(8) + O2(g) SOLUTION (a) Since a gas has a greater entropy than a liquid, the entropy decreases and AS is negative. (b) Since a solid...
Explain the following observations: (a) CO2 is a gas but H2O is a liquid at room temperature (b) H2O is a liquid at room temperature but NH3 and HF are gases (c) H2O and Br2 are liquids at room temperature but I2 is a solid (d) CH4 is a gas at room temperature but C5H12 is a liquid
From a molecular perspective (not from a green chemistry perspective), why is liquid CO2 a good solvent for limonene?
1. Consider the temperature dependence of entropy, it has a ln functional form. But it increases faster for a gas than for a liquid or solid, explain why.
Explain what a volatile liquid is at the molecular level and how it related to boiling point.
For the dissolution of a gas in a liquid, what can be said about the entropy? Choose all that apply. indeterminant decreases for the surroundings (liquid) increases for the system (gas) decreases for the system (gas) increases for the system (gas)
Explain why the melting point of pure hexane is lower than that of pure cyclohexane when the two compounds have nearly the same molecular weight.
2. State which one has a higher entropy (irregularity) value than the two the following choice! Explain your answer. (a) Item 1, CO2 solid samples at -78°C, or item 2, CO2 gas samples at 0°C (b) Item 1, rock sugar, or item 2, the same sugar is dissolved in a cup of tea