A system process is endothermic by 72.9kj but increases the system entropy by 275j/k. Assume the...
A system process is endothermic by 72.9kj but increases the system entropy by 275j/k. Assume the process is reversible so that the temperature of the surrounding and the system stay at 298k. How much energy is free and available for non- expansion work in the surroundings ?
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A system process is endothermic by 72.9kj but increases the
system entropy by 275j/k. Assume the...
of surroundings and total when 050 mol 3. Calculate the change in the entropy the system,...
of surroundings and total when 050 mol 3. Calculate the change in the entropy the system, the , of N2 gas at 298K and 1.00 bar double its volume (a) in an isothermal reversible expansion (b) in an isothermal irreversible expansion against p O (o) in an adiabatic reversible expansion
True or False (Problems 1 through 10) 1. The change in entropy of a closed system...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
5. Consider the following process. Take 1 mol of monatomic ideal gas at 1 L and 300 K and heat it to 600 K while expand...
5. Consider the following process. Take 1 mol of monatomic ideal gas at 1 L and 300 K and heat it to 600 K while expanding the volume to 2 L. Calculate the entropy for the system, surroundings, and the universe. (Assume the simplest non-reversible path for this process.)
Provide an explanation as well for the following questions. 1 Both energy and entropy can be...
Provide an explanation as well for the following questions. 1 Both energy and entropy can be transferred between a system and surroundings by heat, work, and mass flow True or False 2. An actual turbine undergoes an adiabatic process generating entropy due to irreversibilities. The generated entropy a) causes the turbine’s exit temperature to be lower than if the turbine were reversible. b) causes the turbine’s exit temperature to be higher than if the turbine were reversible. c) causes the...
Please explain Heat Transfer and Changes in the Entropy of the Surroundings. Below are key questions....
Please explain Heat Transfer and Changes in the Entropy of the Surroundings. Below are key questions. 1. Know and understand that the entropy change for the universe is defined in terms of the entropy change for the system and the entropy change for the surroundings. 2 .Know that a process in which the system’s entropy decreases can still be spontaneous depending on the degree to which the surroundings’ entropy changes. 3. Know and understand that an exothermic process increases the...
6) When a spontaneou s, endothermic reaction occurs at constant temperature and pressure, the entropy change...
6) When a spontaneou s, endothermic reaction occurs at constant temperature and pressure, the entropy change of the surroundings is: a) impossible to tell b) positive c) negative d) zero a) ΔG > 0 One finds that the equilibrium constant for a particular reaction increases with increasing temperature. Assuming that the standard reaction enthalpy and entropy are temperature independent, this means that: a) The standard reaction enthalpy is less than zero 8) b) The standard reaction entropy is greater than...
process has delta H = -87.4 kj. a) calculate delta S surroundings of the process at...
process has delta H = -87.4 kj. a) calculate delta S surroundings of the process at 204 K b) if delta S system for the same process is 18.7 J/K, how much energy is available to do work at 298 K? assume delta H process is constant through temperature range c) could that much energy (part b) actually be utilized for work? why or why not
For a process to be spontaneous: a) b) the entropy of universe increases and Gibbs energy...
For a process to be spontaneous: a) b) the entropy of universe increases and Gibbs energy of the system decreases. the entropy of system decreases and Gibbs energy of the universe increases. the entropy of system increases and Gibbs energy of the universe decreases the entropy of universe decreases and Gibbs energy of the system increases. c) d)
During a reversible isothermal expansion, the entropy of an ideal gas: a) decreases b) stays constant...
During a reversible isothermal expansion, the entropy of an ideal gas: a) decreases b) stays constant c) increases When dry ice sublimes into gas at 194.65 K and 1 atm, the entropy a) increases b) stays constant c) decreases Which one of the following is true? a) The entropy of an isolated system can only stay constant or increase during a process b) We can construct a heat engine that extracts heat from a hot reservoir and delivers an equal...
Select the statement that correctly describes an endothermic process. a) Heat is lost by the system,...
Select the statement that correctly describes an endothermic process. a) Heat is lost by the system, but work is done on the system. b) The enthalpy change for the process is negative. c) Heat is released by the system, to the surroundings. d) The temperature change of the products is greater than that of the reactants. e) The enthalpy of the products is higher than that of the reactants.
of surroundings and total when 050 mol 3. Calculate the change in the entropy the system, the , of N2 gas at 298K and 1.00 bar double its volume (a) in an isothermal reversible expansion (b) in an isothermal irreversible expansion against p O (o) in an adiabatic reversible expansion
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
5. Consider the following process. Take 1 mol of monatomic ideal gas at 1 L and 300 K and heat it to 600 K while expanding the volume to 2 L. Calculate the entropy for the system, surroundings, and the universe. (Assume the simplest non-reversible path for this process.)
6) When a spontaneou s, endothermic reaction occurs at constant temperature and pressure, the entropy change of the surroundings is: a) impossible to tell b) positive c) negative d) zero a) ΔG > 0 One finds that the equilibrium constant for a particular reaction increases with increasing temperature. Assuming that the standard reaction enthalpy and entropy are temperature independent, this means that: a) The standard reaction enthalpy is less than zero 8) b) The standard reaction entropy is greater than...
For a process to be spontaneous: a) b) the entropy of universe increases and Gibbs energy of the system decreases. the entropy of system decreases and Gibbs energy of the universe increases. the entropy of system increases and Gibbs energy of the universe decreases the entropy of universe decreases and Gibbs energy of the system increases. c) d)
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