One mole of methane undergoes combustion to form `CO_2` and water at 25°C. The difference between `DeltaU `and `DeltaH` will be
1)-2RT
2) 3RT
3) RT
4) 0​

Calculate heat relesed (in Kj) when 2 moles of gaseous methane undergoes combustion in a rigid vessel of volume 50 liters causing a change in pressure from 10 bar to 2 bar at 300K. [Useful data : DeltaH_(f)H_(2)O =-280kJ/mole, DeltaH_(f)CO_(2) =-390kJ/mole, DeltaH_(f)CH_(4) =-390kJ/mole,=-70kJ/mole],

The value of DeltaH-DeltaU when 2 moles of solid benzoic acid undergoes combustion at 300 K is given by :

For which of the following reactions DeltaH=DeltaE+2RT

One mole of H_(2) at 25^(@)C undergo combustion in the presence of excess O_(2) in a closed rigid adibatic container: H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l)," "DeltaH=-240kJ//"mole" Choose the incorrect option :