Everyday Science Mcqs » Everyday Science MCQs
When enthalpy of reactants is higher than product then reaction will be_________________?

A. Endothermic
B. Spontaneous
C. Non-spontaneous
D. Exothermic

State function the macroscopic property of system depends upon________________?

A. Path of reaction
B. Initial state
C. Final state
D. Initial and final state

CuSO4 + Zn?ZnSO4+Cu is___________________?

A. Spontaneous reaction
B. Non-spontaneous reaction
C. Endothermic
D. Exothermic

Total energy of a system is_________________?

A. P.e + k.e
B. P.e + heat energy
C. K.e + heat energy
D. P.e + mechanical energy

________________ is study about energy of a chemical system ?

A. Thermochemistry
B. Thermodynamics
C. Chemical kinetics
D. Stoichiometry

Which of the following has strongest intermolecular forces of attraction ?

A. Hydrogen (h2)
B. Chlorine (cl2)
C. Lodine (i2)
D. Methane (ch4)

When substance moves from a solid to a liquid state all of the following changes occur except__________________?

A. Molecules become more disordered
B. K.e of the molecules decreases
C. Intermolecular forces become weaker
D. Molecule become further separated

In order to mention the boiling point of water at 110°C the external pressure should be ?

A. Between 760 torr and 1200 torr
B. Between 200 torr and 760 torr
C. 765 torr
D. Any value of pressure