The stable state of aggregation of sulphur at `298K` and `1atm` pressure is…………….sulphur.

The stable state of aggregation of carbon at 298K and 1atm pressure is……………

Write the state of hybridisation of sulphur in SO_2

The standard enthalpy of diamond is zero at 298K and 1 atm pressure.

The conventional standard molar enthalpy of an element in its stable state of aggregation at 298K is taken to be ……………. .

The enthalpy of combustion of benzoic acid (C_(6)H_(5)COOH) at 298K and 1atm pressure is -2500.0 kJ mol^(-1) . What is DeltaU for the reaction?

What is oxidation state of sulphur is Caro's acid ?

Assertion: The enthalpy of formation of gaseous oxygen molecules at 298K and under1 atm is zero. Reason: The entropy of formation of gaseous oxygen molecules under the same condition is zero.

The Henry's law constant for the solubility of N_(2) gas in water at 298K is 1.0 xx 10^(5) atm. The mole fraction of N_(2) in air is 0.8 . The number of moles of N_(2) from air dissolved in 10 moles of water at 298K and 5 atm pressure is

0.562g of graphite kept in a bomb calorimeter in excess of oxygen at 298K and 1 atmospheric pressure was burnt according to the equation, C_(Graph ite)+O_(2(g))rarr CO_(2(g)) durgin the reaction, temperature rises from 298K o 298.89K . If the heat capacity of the calorimeter and its contents is 20.7 kJ//K , what is the enthalpy change for the above reaction at 298K and 1 atm ?

What is the oxidation state of sulphur in sulphate ion ?