When ∆G is positive, the process is always non-spontaneous. Explain.
∆G can be positive only if;
(i) both the factors oppose i.e. ∆H is +ve and T∆S is –ve,
(ii) both the factors i.e. ∆H and T∆S have a negative sign and T∆S > ∆H,
(iii) both the factors i.e. ∆H and T∆S have a +ve sign and ∆H > T∆S.
Define thermodynamics.
What do you understand by the terms: the system and surroundings?
Classify the following into different types of systems:
(i) Tea placed in a cup
(ii) Tea placed in a tea-pot
(iii) Tea placed in a thermosflask.
Define a closed system.
Define an isolated system.
Define intensive properties.
Define extensive properties.
Why all living systems need to be 'open systems'?
Define state variables of a system.
From thermodynamic point of view, to which system the animals and plants belong?
Mock Test Series
