N2H4 (Hydrazine) is a rocket fuel, it burns in O2 to give N2 and H2O N2H4 + O2 N2 + 2H2O

1.00 g of n2h4 is burnt in a bomb calorimeter an increase of temperature 3.51° C is recorded. The specific heat of calorimeter is 5.5 J k⁻¹ g⁻¹ . Calculate the quantity of heat evolved also calculate the heat of combustion of one mole of N2H4

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?