Thermochemistry test 2

08:14:00 Unknown 0 Comments

A test from chapter 7 i.e thermochemistry of Chemistry part 1. This is Free online test for FSc and Entry test Preparation for UET, NUST, FAST, GIKI, PIEAS, NFC, Punjab University, UHS, other Engineering Universities and Medical Colleges.

1. An exothermic reaction is one in which

A) enthalpy of reactants and products are same
B) heat is absorbed by system
C) enthalpy of products is greater than reactants
D) enthalpy of reactants is lesser than products

2. A substance under observation during an experiment

A) surrounding
B) system
C) state function
D) universe

3. Enthalpy of neutralization is merely

A) heat of solution
B) heat of atomization
C) heat of combustion
D) heat of formation of H20

4. Lattice energy of NaCl is

A) +500 Kg
B) -776 Kg
C) -344 KJ
D) -411 KJ

5. Standard enthalpy of Al2O3 cannot be measured because

A) it does not catch fire
B) it reacts with CO2
C) protective layer of oxide cover the surface
D) none

6. Ammonium chloride dissolve in water this process is

A) endothermic process
B) exothermic process
C) simple hydration
D) none

7. First law of thermodynamics is represented as

A) D E = q + R T
B) D E = q + D P
C) D E = q + D P
D) D E = q + w

8. Pumping of water uphill is

A) spontaneous reaction
B) exothermic reaction
C) non spontaneous reaction
D) endothermic

9. In exothermic reaction D H is

A) Positive
B) negative
C) zero
D) none

10. Born–Haber cycle is an application of

A) first law of thermodynamics
B) second law of thermodynamics
C) first law of thermochemistry
D) Hess's law