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The accompanying diagram shows how entropy varies with temperature for a substance that is a gas at the highest temperature shown.
(a) What processes correspond to the entropy increases along the vertical lines labeled 1 and 2?
(b) Why is the entropy change for 2 larger than that for 1?
If the partial pressure of helium is the same as the partial pressure of oxygen, what do you know about the number of helium atoms compared to the number of oxygen molecules? explain.
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing 0.070 mol lysine (HL), 0.055 mol aspartic acid (H2A), and 0.0080 mol NaOH. Consider just acid-base chemistry.
The concentration of Mg2+ in a sample of water is 262 mmol/L At what pH will 99% of the Mg2+ be precipitated as Mg(OH)2? Ksp = 8.9 x 10-12
where the atmospheric pressure is 1.00 atm. The balloon rises to an altitude of 20,000 m, where the atmospheric pressure is 61 mmHg and the temperature is 210 K. What is the volume of the balloon at 20,000 m?
Two gas reservoirs, A and B, have the same volume and contain gas at the same temperature. Reservoir A contains 7.62g of He gas at a pressure of 1.20atm. Reservoir B cotains Ne gas at a pressure of 1.80atm. Determine the mass of Ne gas in containe..
Celsius the initial sample contained 0.0718 grams of calcium. What percent of the limestone by mass is CaCO3?
Predict which substance in each of the following pairs has a greater molar entropy. 1. P4 (g) vs. P2 (g) 2. HNO3 (aq) vs. HNO3 (l) 3. CuSO4 (s) vs. CuSO4 * 5H2O (s)
The specific heat of a certain type of cooking oil is 1.75 J/(g·°C). How much heat energy is needed to raise the temperature of 2.69 kg of this oil from 23 °C to 191 °C
If one component of a solution follows Raoult's Law subsequently the other component must also obey the same law. Intermolecular forces are small in ideal solutions.
Prepare a chemical reaction for a generic alkyl halide with silver nitrate in ethanol as well as with sodium iodide in acetone. In each case, which alkyl halides react faster
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
Question- Calculate the minimum concentration of Ca2+ that must be added to 0.10 M NaF in order to initiate a precipitate of calcium fluoride.
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