HINTS AND SOLUTIONS
Single Option Correct Type
3. If a gas is ideal, there is no force of attraction between its molecules, hence expansion takes place without loss of energy.
4. If the value of ΔH is positive, then the heat is absorbed by the system during the reaction.
5.
6. Plants and living beings are capable of exchanging both, matter and energy with their surroundings, that is, they are examples of open system.
7. In thermodynamics a process is called reversible when the surroundings are always in equilibrium with the system.
8. As PVγ = constant
Pγ Vγ–1 dV + Vγ ⋅ dP = 0
– γVγ–1 ⋅ dV = Vγ ⋅ dP/P
on solving
9. The internal ...
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