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Q.1: What is an exothermic reaction?

Q.2: What is an endothermic reaction?

Q.3: What is a calorimeter?

Q.4: What is the specific heat of a substance?

Q.5: What is an isothermal process?

Q.6: What is an isobaric process?

Q.7: What is the internal energy of the system?

Q.8: How can the energy be transferred to a system?

Q.9: What is a state function?

Q.10: What is enthalpy of a system?

Q.11: What is Hess's law?

Q.12: What is entropy?

Q.13: What is Gibbs free energy?

Q.14: The amount of heat required to raise the temperature of 1 gm of water by one degree Celsius is a(n) -------.

Q.15: --------- reactions generally take place spontaneously.

Q.16: In nature a system tends to go from a state of --------- energy to a state of --------- energy.

Q.17: Natural processes tend to go from a(n) --------- state to a(n) ---------- state.

Q.18: Heat required to melt 5.67 gm of FeO (enthalpy of fusion of FeO = 32.2 kJ/mol) is ---------.

Q.19: Energy required to convert 10.0 gm of ice at -10.0 0 C to steam at 150 0 C ?

Q.20: The number of calories of heat liberated when one gm of a substance condenses is called its
(A) heat of vaporization
(B) heat of sublimation
(C) heat of condensation
(D) heat of fusion
(E)heat of solidification
Select the labelled statement that best fits your answer.





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