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(a) What is meant by calling a process irreversible?
(b) After a particular irreversible process, the system is restored to its original state.What can be said about the condition of the surroundings after the system is restored to its original state?
(c) Under what conditions will the condensation of a liquid be an irreversible process?
if the observed rate constant for the oxidation reaction at 35 C is 6.75*10^-2 min^-1, and at 25 C is 3.25*10^-2 min ^-1. what is the activation energy for the reaction
What is the hybridization scheme for the central atom in the following?
multiple choice questions in free energy change.1. the enthalpy and entropy change of a reaction are -6.1 kjmole and
Consider the reaction below. What volume of CO2 gas will be produced by the reaction of 100 gram of CaCO3 at 25degC and P=10atm? CaCO3(s) + 2 HCl(l) > CaCl2(aq) + CO2(g) + H2O(l)
An isolated chamber with rigid walls is divided into two equal compartments, one containing gas and the other evacuated. The partition between the compartments ruptures.
A weather balloon at Earth's surface has a volume of 4 L at 285 K and 791 mmHg. If the balloon is released and the volume reaches 4.19 L at 711 mmHg.
Which set of atoms is correctly arranged in order of increasing electronegativity (lowest electronegative atom listed first)?
A sample of oxygen gas is collected over water at 25 degree Celsius and a total pressure of 654 torr. The volume of the gas collected is 500 ml. What mass of oxygen is collected. The vapor pressure of water at 25 degree celsius is 23.8 torr
Question- A buffer is prepared by adding 30.0g of sodium acetate (CH3COONa) to 600mL of a 0.150M acetic acid (CH3COOH) solution. Determine the pH of the solution. Ka=1.8 x 10^-5
a) What are the mole fractions of each component in a mixture of 5.10 g of O2, 7.44 g of N2, and 1.26 g of H2. O2 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully.
Calculate the difference in the ionization energies for 1H and 4He atoms. This result allows you to compare the effect on the ionization energy of changing the nuclear charge
The mixture did not rotate the plane of polarized light before. How had the mold changed the solution to become optically active?
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