Which of the following is true about the concept of "thermal equilibrium"? -When a system is...
Which of the following is true about the concept of "thermal equilibrium"?
-When a system is in equilibrium, its temperature is at a maximum.
-The gas in a closed container is in thermal equilibrium only if the density of gas is roughly equal in all parts of the container.
-When a system is in equilibrium, its entropy is maximized.
-Heat can flow in or out of a system that is in thermal equilibrium.
Homework Answers
When a system is in equilibrium then its entropy is maximum
Hence option (c) is correct
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Which of the following is true about the concept of "thermal
equilibrium"?
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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...
Which of the following are true about radiation of heat? Mark all that apply. The rate...
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Please answer true or false and explain why for each of them. Thank you 1. Mark...
Please answer true or false and explain why for each of them.
Thank you
1. Mark with T (True) or F (False) (2 points each) • Joule Thompson experiment corresponds to process with constant enthalpy. . The state functions (U.H,G,A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi- ronment. . The standard enthalpy of formation for any...
6. The formula dS = dQ/T makes it look like a system can only increase its...
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Thermal energy storage systems commonly involve a packed bed of solid spheres through which a hot...
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EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in...
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Which of the following is true about a 0.200 mol sample of nitrogen gas and a...
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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...
Which of the following are true about radiation of heat? Mark all that apply. The rate of energy transfer is proportional to the surface area of the object Radiation occurs when mass at one temperature transfers to a different location Radiation can transfer heat through empty space (vacuum) Radiation is a result of the collisions between molecules in two different objects at two different temperatures Which of the following characteristics describe good thermal conductors? Mark all that apply. High thermal...
Please answer true or false and explain why for each of them.
Thank you
1. Mark with T (True) or F (False) (2 points each) • Joule Thompson experiment corresponds to process with constant enthalpy. . The state functions (U.H,G,A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi- ronment. . The standard enthalpy of formation for any...
1. Mark with T (True) or F (False) (2 points each) • A Joule Thompson experiment corresponds to a process with constant enthalpy • The state functions (U.H.G.A) act as thermodynamic potentials when represented as functions of their natural variables. • The Gibbs free energy is equal to the maximum PV work done by the system on the envi ronment • The standard enthalpy of formation for any pure element in its reference state is temperature dependent • The phase...
Thermal energy storage systems commonly involve a packed bed of solid spheres through which a hot gas flows when the system is being charged. In the charging process heat is transferred from the hot gas to the spheres and it increases the thermal energy stored in the spheres. Here are some variables that are important - the convection coefficient between the particle surface and the gas is h (W/m2 K) and the particle thermophysical properties are k (W/m K), Cp...
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Which of the following is true about a 0.200 mol sample of nitrogen gas and a 0.200 mol sample of argon gas that are at 1.20 atm and an initial temperature 55.0°C when the temperature changes to 400 K? Assume constant volume for the container under both of these temperature conditions. The density of both gases will increase. There will be more collisions between the gas molecules and the pressure in the container will decrease. None of these choices is...
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