একটি 1 এল ফ্লাস্কে 27^(@)C তাপমাত্রায় 32 গ্রাম O_(2) গ্যাস থাকে। O_(2) এর কত ভর কমাতে হবে...

Calculate the temperature at which root mean square velocity of SO_(2) molecules is the same as that of O_(2) molecules at 127^(@)C . Molecular weights. Of O_(2) and SO_(2) are 32 and 64 respectively.

Calculate the entropy change accompanying the following change of state 5 mol of O_(2) (27^(@)C, 1 atm) rarr 5 mol of O_(2) (117^(@)C, 5 atm) C_(P) for O_(2) = 5.95 cal deg^(-1) mol^(-1)

4 litre C_(2)H_(4) (g) burns in oxygen at 27^(@)C and 1 atm to produce CO_(2) (g) and H_(2)O (g) Calculate the volume of CO_(2) formed at (a) 27^(@)C and 1 atm (b) 127^(@) C and 1atm ( c) 27^(@)C and 2 atm .

4 litre C_(2)H_(4) (g) burns in oxygen at 27^(@)C and 1 atm to produce CO_(2) (g) and H_(2)O (g) Calculate the volume of CO_(2) formed at (a) 27^(@)C and 1 atm (b) 127^(@) C and 1atm ( c) 27^(@)C and 4 atm .

C + O_(2) rarr CO_(2), CO + (1)/(2) O_(2) rarr CO_(2), Then Delta_(f) H for CO will be

If S^(@) for N_(2) , O_(2) , N_(2)O , NO_(2) , NO and N_(2)O_(4) are 45.7 , 49.0 , 48.2 , 57.24 and 72.77 cal respectively and {:(N_(2)+(1)/(2)O_(2)hArrN_(2)O , DeltaH^(@)=19.49 kcal at 27^(@)C), ((1)/(2)N_(2)+(1)/(2)O_(2)hArrNO , DeltaH^(@)=21.60 kcal at 27^(@)C), ((1)/(2)N_(2)+O_(2)hArrNO_(2) , DeltaH^(@)=8.09 kcal at 27^(@)C), (N_(2)+2O_(2)hArrN_(2)O_(4), DeltaH^(@)=2.19 kcal at 27^(@)C):} For which DeltaG^(@) is more +ve ?

The kinetic energy of N molecules of O_(2) is x joule at -123^(@)C . Another sample of O_(2) at 27^(@) C has a kinetic energy of 2x. The latter sample contains molecules of O_(2) .

The KE of N molecule of O_(2) is x joules at -123^(@)C . Another sample of O_(2) at 27^(@)C has a KE of 2x joules. The latter sample contains

Mole conept: Calculate the follwing in 48g of oxygen gas (diaxygen) at room temperature (25^(@) C) : (i) moles of O_(2) , (Ii) number of O_(2) molecules, (iii) number of O atoms, and (iv) number of electrons. Strategy: The molecular mass of dioxygen (O_(2)) is 32 mu Thus, its molar mass is 32.0g mol^(-1) , Now, use the needed information: (a) one mole of O_(2) contains Avogadro's number of O_(2) molecules, (b) one O_(2) molecules contains 2 oxygen atons, and (c) one oxygen atom contains 8 electrons.