4) Multiple Choice Question (MCQs) :
1. The chemical thermodynamics is a branch of chemistry which
deals mainly with the study of
(a) electrical energy
(b) mechanical energy
thermal energy
(d) potential energy
2. The changes which take place in thermodynamics does not
consider
(a) volume
(b) temperature
(c) pressure
3. The first law of thermodynamics gives the information about the
conservation of
(a) mass
(c) pressure
(d) energy
4. The change in entropy of a system depends on
(b) path of the system
(d) time
(b) heat
Answers
Answer:
4-Entropy depends upon pressure, volume, and temperature.
3-The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy. This means that heat energy cannot be created or destroyed.
2-A thermodynamic property is that, which is measurable and whose value describes the state of system. Out of the given quantities, heat doesn't describe the state of a system so it is not a thermodynamic property because a system doesn't contain heat but only can transfer heat.
1-Chemical thermodynamics is the study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics.