A 1.50-mole sample of an ideal gas is allowed to expand adiabatically and reversibly to twice its original volume. In the expansion, the temperature dropped from 296K to 239K. Calculate the entropy change and enthalpy change for the gas expansion.

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Q: >What is a perpetual motion machine? Can such a machine exist given the laws of thermodynamics?

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Q: Can a perpetual motion machine exists given the laws of thermodynamics?

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Q: Calculate the standard state entropy of formation for H2O gas and of H2O liquid. Why is the entropy…

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Q: temperature

A: Dear student I have given answer to your question in the image format

Q: the reaction between hydrazine N2H4 and nitrogen peroxide N2O4 according to the reaction is used for…

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Q: calculate the molar entropy of an ideal gas

A: Entropy is the measure of randomness or disorder.letter S is used for the entropy .molar entropy is…

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Q: Under what circumstances does entropy of a system decrease for a spontaneous process

A: For any  spontaneous process, the value of Gibbs free energy change i.e ΔG should be -ve And since…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

A: 2NH3(g) ---> N2H4(g) + H2(g)

Q: What is the third law of thermodynamics? How does the third law relate to the calorimetric entropy…

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Q: Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one- half of a…

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Q: How many microstates are present in a system with an entropy of zero?

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Q: One mol of an ideal gas at 300 K expands reversibly from 3 x 102 m³ to 5 x 102 m3, Calculate the…

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Q: The entropy of a mixture of N2 and O2 gases at certain temperature and volume is equal to the sum of…

A: True;

Q: Does the entropy of the surroundings increase for spontaneous processes?

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Q: According to the second law of thermodynamics for any spontaneous process, the entropy of the…

A: To find: For a spontaneous process, the entropy of the universe

Q: ard molar entropy,

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Q: If the final temperature is 166.66K, determine the change in entropy for each substance.

A: Entropy (S) parameter in thermodynamic measure the randomness of the system it is a state function

Q: Find the absolute entropy of Nitrogen gas at 100 K. Assume that the heat capacity of nitrogen gas in…

A: Answer: Entropy of system is the measure of its disorderliness or randomness. In more possible…

Q: Whenever a gas expands isothermally, such as when you exhale or when a flask is opened, the gas…

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Q: A gaseous system undergoes a change in temperature and volume. What is the entropy change for a…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Under what circumstance can the entropy of a system decrease for a spontaneous process?

A: For any spontaneous process process, the value of ΔG < 0 And since ΔG = ΔH - T ΔS

Q: Do you need to specify the temperature to calculate the entropy change?

A: The entropy change can be  calculated using the formula, Where,∆H standard enthalpy of formation…

Q: Calculate the change in entropy

A:

Q: The second law of thermodynamics states that A. in a spontaneous process, the entropy of the…

A: First law of thermodynamics is concerned with the conservation of energy while the second law of…