For the reaction, 2Cl(g) Cl2(g), the correct option is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct option for free expansion of an ideal gas under adiabatic condition is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe solubility of a solute in water varies with temperature and is given as
Here, is enthalpy of the solution. For the given solute variation of log, S with temperature can be shown by the figure given below.
This solute may be
1. CaSO4
2. CuSO4
3. CuSO45H2O
5. MgO
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe equilibrium constant for the reaction
is 18.5 at 925 and 9.25 at 1000 respectively. What is the enthalpy of the reaction?
1. -142.16 kJ/mole
2. -71.08 kJ/mole
3. -35.54 kJ/mole
4. none of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the value of H in a reaction is positive, then the reaction is called
(1) Exothermic
(2) Endothermic
(3) Polymorphic
(4) Polytropic
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMolar heat capacity at constant P for a substance is equal to
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPlants and living beings are examples of -
1. Isolated system.
2. Adiabatic system.
3. Open system.
4. Closed system.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor an adiabatic expansion of a perfect gas, P/P is equal to?
(1)
(2)
(3)
(4)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf a gas at constant temperature and pressure expands,
then its
(1) Internal energy decreases
(2) Entropy increases and then decreases
(3) Internal energy increases
(4) Internal energy remains constant
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf a gas absorbs 200 J of heat and expands by 500 against the constant pressure of
2x Nm-2 , then a change in internal energy is -
1. 200 J
2. 100J
3. +100J
4. + 300J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology