Chemistry

An ideal gas at constant temperature and pressure expands and its

An ideal gas at constant temperature and pressure expands and its Options (a) internal energy increases (b) internal energy decreases…

Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat

Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat of formation of water, then…

The neutralisation of a strong acid by a strong base liberates an amount

The neutralisation of a strong acid by a strong base liberates an amount of energy per mole of H⁺ that…

If 900 J/g of heat is exchanged at boiling point of water, then what is increase

If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy Options (a)…

The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ.

The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ. The heat of formation…

The standard heat of formation of carbon disulphide (l) given that the standard

The standard heat of formation of carbon disulphide (l) given that the standard heat of combustion of carbon(s) , sulphur(s)…

For the reaction C(s) + O₂(g)

For the reaction C(s) + O₂(g) Options (a) ΔH = ΔE (b) ΔH < ΔE (c) ΔH > ΔE (d)…

Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction

Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction H₂(g) + 1/2 O₂(g) → H₂O(g) at…

For an endothermic reaction the value of ΔS is positive.The reaction is

For an endothermic reaction the value of ΔS is positive.The reaction is Options (a) feasible when ΔH > TΔS (b)…

If the value of Cp for nitrogen gas is 7 JK⁻¹mol⁻¹ , then the value

If the value of Cp for nitrogen gas is 7 JK⁻¹mol⁻¹ , then the value of ΔH on heating 28g…