Case Based Questions Test: Thermodynamics - NEET MCQ
8 Questions MCQ Test Chemistry Class 11 - Case Based Questions Test: Thermodynamics
Entropy is a measure of degree of randomness. Entropy is directly proportional to temperature. Every system tries to acquire maximum state of randomness or disorder. Entropy is a measure of unavailable energy. Unavailable energy = Entropy × Temperature The ratio of Entropy of Vaporization and boiling point of a substance remains almost constant. Answer the given below questions (i) to (iv).
Q. Which of the following has S = +ve?
Entropy is a measure of degree of randomness. Entropy is directly proportional to temperature. Every system tries to acquire maximum state of randomness or disorder. Entropy is a measure of unavailable energy. Unavailable energy = Entropy × Temperature The ratio of Entropy of Vaporization and boiling point of a substance remains almost constant. Answer the given below questions (i) to (iv).
Q. Which of the following has S = – ve?
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Entropy is a measure of degree of randomness. Entropy is directly proportional to temperature. Every system tries to acquire maximum state of randomness or disorder. Entropy is a measure of unavailable energy. Unavailable energy = Entropy × Temperature The ratio of Entropy of Vaporization and boiling point of a substance remains almost constant. Answer the given below questions (i) to (iv).
Q. The sign of ΔS in the reaction, N2(g) + O2(g) → 2NO(g) is:
Entropy is a measure of degree of randomness. Entropy is directly proportional to temperature. Every system tries to acquire maximum state of randomness or disorder. Entropy is a measure of unavailable energy. Unavailable energy = Entropy × Temperature The ratio of Entropy of Vaporization and boiling point of a substance remains almost constant. Answer the given below questions (i) to (iv).
Q. The law of thermodynamics, which helps to determine absolute Entropy is:
The internal energy of a system may be changed either by allowing the exchange of heat with the surroundings or by doing work on the system. If the reaction is carried out at a constant volume, pressure-volume work done is zero. We know that qp = qv + ngRT. Internal energy is an extensive property and a state function. The questions from (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option:
Assertion: Internal energy of a system is an extensive property.
Reason: The internal energy of a system depends upon the physical state and amount of the substance.
The internal energy of a system may be changed either by allowing the exchange of heat with the surroundings or by doing work on the system. If the reaction is carried out at a constant volume, pressure-volume work done is zero. We know that qp = qv + ngRT. Internal energy is an extensive property and a state function. The questions from (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option:
Assertion: Absolute value of internal energy (U) cannot be determined.
Reason: Internal energy is a sum of many types of energies, that depend on several factors.
The internal energy of a system may be changed either by allowing the exchange of heat with the surroundings or by doing work on the system. If the reaction is carried out at a constant volume, pressure-volume work done is zero. We know that qp = qv + ngRT. Internal energy is an extensive property and a state function. The questions from (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option:
Assertion: Work and internal energy of a system are state functions.
Reason: The sum of q + w is a state function.
The internal energy of a system may be changed either by allowing the exchange of heat with the surroundings or by doing work on the system. If the reaction is carried out at a constant volume, pressure-volume work done is zero. We know that qp = qv + ngRT. Internal energy is an extensive property and a state function. The questions from (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option:
Assertion: The increase in energy (U) for the vaporization of one mole in water at 1 atm and 373 K is zero.
Reason: For gaseous isothermal processes, U = 0.
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