AIPMT 2005 | Thermodynamics Question 57 | Chemistry

AIPMT 2005

MCQ (Single Correct Answer)

-1

A reaction occurs spontaneously if

T$$\Delta $$S < $$\Delta $$H and both $$\Delta $$H and $$\Delta $$S are +ve

T$$\Delta $$S > $$\Delta $$H and $$\Delta $$H is +ve and $$\Delta $$S are $$-$$ve

T$$\Delta $$S > $$\Delta $$H and both $$\Delta $$H and $$\Delta $$S are +ve

T$$\Delta $$S = $$\Delta $$H and both $$\Delta $$H and $$\Delta $$S are +ve

AIPMT 2005

MCQ (Single Correct Answer)

-1

Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction ?

Exothermic and increasing disorder

Exothermic and decreasing disorder

Endothermic and increasing disorder

Endothermic and decreasing disorder

AIPMT 2005

MCQ (Single Correct Answer)

-1

The absolute enthalpy of neutralisation of the reaction :

Mg(O)_(s) + 2HCl_(aq) $$ \to $$ MgCl_2(aq) + H₂O_(l) will be

$$-$$57.33 kJ mol^$$-$$1

greater than $$-$$ 57.33 kJ mol^$$-$$1

less than $$-$$ 57.33 kJ mol^$$-$$1

57.33 kJ mol^$$-$$1

AIPMT 2004

MCQ (Single Correct Answer)

-1

Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is

$$\Delta {S_{system}} + \Delta {S_{surroundings}} > 0$$

$$\Delta {S_{system}} - \Delta {S_{surroundings}} > 0$$

$$\Delta {S_{system}} > 0\,\,\,$$only

$$\Delta {S_{surroundings}} > 0$$ only

NEET Subjects

Biology

Botany

Zoology