What will be the pressure of 1 mole of an ideal gas maintained at 300 K and 250cm3 volume ?
A. 98.5 atm B. 96.7 atm C. 95.8 atm D. 97.1 atm
Chemistry MCQs
Who made volume and pressure correction to explain deviation of gases from ideal behaviour ?
A. Clausius B. Boltzman C. Charles D. Vander waal
The gases become non-ideal at ________________?
A. High temperature and high pressure B. Low temperature and low pressure C. High temperature and low pressure D. Low temperature and high pressure
The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?
A. 3 B. 2.7 C. 2 D. 1.5
If a buffer solution of higher pH than seven is to be made we use___________________?
A. Strong acid and strong base B. Weak acid and strong base C. Weak acid and strong base D. Weak acid and its salt with strong base
AgCl dissolved with conc (2×10-2) Ksp will be__________________?
A. 3.6 x 10-6 B. 3.6 x 10-5 C. 7.2 x 10-6 D. 4 x 10-4
Which of the following will not change the concentration of ammonia at the equilibrium ?
A. Increase of pressure B. Increase of volume C. Addition of catalyst D. Decrease of temperature
For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?
A. Kc is generally greaer than Kp B. Kc is generally less than Kp C. Kc is generally equal to Kp D. Kc is equal to Kp if the total moles of reactants and products are equal
Which one of the following aqueous solutions will be basic ?
A. NaCI B. Na2SO4 C. Na2CO3 D. FeCl3
Reaction which proceeds in both directions is called_______________?
A. reversible B. irreversible C. spontaneous D. non-spontaneous