A sample of nitrogen gas kept in a container of volume is 2.3 L and at a temperature of 37 degree exerts a pressure of 3.5 atm. Calculate the number of moles of gas present. A chemical equation for conversion of ZnS to ZnO is as. delta H for this source reaction -879 kJ/mol. where delta H degree_r for ZnO = -348.0 kJ/mol and delta H degree_r for SO_2 = -296.4 kJ/mol. Calculate the heat evolved in kJ per gram of ZnS. During volcanic eruptions, hydrogen sulfide gas is given off and oxidized by air according to the following chemical equation: Calculate the standard enthalpy change for the above reactions given:
