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In which process, net work done by an ideal gas is zero:

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Important Questions on Thermodynamics

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 19
1 mole of ideal gas is expanded isothermally and reversibly from 10 L  to 100 L. Which of the following options is/are incorrect for the process:
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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 20

P-V plots for two gases during an adiabatic process are given in the figure:

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Plot A and plot B should correspond to: (Assume ideal behaviour).

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 21
An ideal gas with Cv=3R expands adiabatically into a vacuum thus doubling its volume. The final temperature is given by:
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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 22

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For this cyclic process change in enthalpy of ideal gas is:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 23
The work done by a system is 8 joule, when 40 joule heat is supplied to it. What is the change in internal energy of system?
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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 24
For exothermic reaction ΔH will be:
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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 25
Which statement is true regarding endothermic reactions:
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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 26
Following data is known about melting of a compound AB. ΔH=9.2kJ mol-1, ΔS=0.008kJ K-1mol-1. Its melting point is: