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

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

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

During melting of an ice slab at 273K at 1atm pressure:

The sign of DeltaG for the process of melting of ice at 273K and 1 atm pressure is

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?

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 ?