The pressure during the molar heat of fusion is kept________________?

Related Mcqs:

1. Pressure in gas discharge tube was kept________________?

   A. 10 torr
   B. 1 torr
   C. 0.1 torr
   D. 0.01 torr

2. The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?

   A. vaporization
   B. evaporation
   C. crystallization
   D. sublimation

3. Molar heat of vaporization of water is_________________?

   A. 40.7 KJ/mole
   B. 40.7 J/mole
   C. 40.7 cal/mole
   D. 40.7 Kcal/mole

4. If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?

   A. Heat of transition
   B. Heat of fusion
   C. Enthalpy change
   D. All of above

5. Hydrogen effuses four times more rapidly than volume of an unknown gas molar mass of unknown gas should be_______________?

   A. 16 gmol-1
   B. 32 gmol-1
   C. 48 gmol-1
   D. 64 gmol-1

6. When sparingly soluble salt is in equilibrium with molar concentration of its oppositely charged ion when the product is called_________________?

   A. common ion effect
   B. solubility product
   C. dissociation constant
   D. dissociation constant for an acid

7. 1 molar solution of glucose in water contains weight of glucose________________?

   A. 180g/dm3
   B. 170g/dm3
   C. 190g/dm3
   D. 195g/dm3

8. Sum of exponents of molar concentration is called___________________?

   A. Order of reaction
   B. Molecularity
   C. Rate of reaction
   D. Average of reaction

9. The molar mass of an organic acids is determined by____________?

   A. Depression of freezing point
   B. Volumetric method
   C. Victor Meyer’s method
   D. Osmosis method

   Submitted by: Muhammad Ali Kunbhar

10. A compound is determined to have an emperical formula of C2H6O and a molar mass of 138 g/mole. What is the molecular formula?

    A. C2H6O
    B. C6H18O3
    C. C6H12O6
    D. C2H5O

    Submitted by: Muhammad Ali Kunbhar