A necessary condition for an adiabatic change is-

1. ∆T = 0

2. ∆P = 0

3. q = 0

4. w = 0

Subtopic:  Thermodynamics' Properties and process |
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Which, among the following, is not a state function?

1. Internal energy

2. Free energy

3. Work

4. Enthalpy

Subtopic:  Thermodynamics' Properties and process |
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Which one of the following statements is false?

1. Temperature is a state function.

2. Work is a state function. 

3. Change in the state is completely defined when the initial and final states are specified​.

4. Work appears at the boundary of the system.

Subtopic:  Thermodynamics' Properties and process |
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The enthalpy of formation of all elements in their standard state is-

1. Unity

2. Zero

3. Less than zero

4. Different for each element

Subtopic:  Thermodynamics' Properties and process |
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Thermodynamics is not concerned about-

1. Energy changes involved in a chemical reaction

2. The extent to which a chemical reaction proceeds

3. The rate at which a reaction proceeds

4. The feasibility of a chemical reaction

Subtopic:  Thermodynamics' Properties and process |
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In an adiabatic process, no transfer of heat takes place between the system and its surroundings. The correct option for free expansion of an ideal gas under adiabatic condition from the following is -

1. q=0, T0, W=0

2. q0, T=0, W=0

3. q=0, T=0, W=0

4. q=0, T=0, W0

Subtopic:  Thermodynamics' Properties and process |
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The amount of heat needed to raise the temperature of 60.0 g of aluminum from 35°C to 55°C would be -

(Molar heat capacity of Al is 24 J mol-1 K-1)

1. 1.07 J2. 1.07 kJ3. 106.7 kJ4. 100.7 kJ

Subtopic:  Thermodynamics' Properties and process |
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The correct statement among the following is-

1. The presence of reacting species in a covered beaker is an example of an open system.

2. There is an exchange of energy as well as matter between the system and the surroundings in a closed system.

3. The presence of reactants in a closed vessel made up of copper is an example of a closed system.

4. The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.

Subtopic:  Thermodynamics' Properties and process |
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A Beckmann thermometer is used to measure -

1. High temperature

2. Low temperature

3. Normal temperature

4. All temperatures

Subtopic:  Thermodynamics' Properties and process |
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Work done is maximum in -

1. Isobaric work           

2. Isothermal work

3. Isochoric work         

4. Adiabatic work

Subtopic:  Thermodynamics' Properties and process |
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