According to the equation below, what is the enthalpy change when 400.0 g of propane is burned in excess oxygen? c3h8 (g) + 5o2 (g) ) ↔ 3co2 (g) + 4h2o (l) δh = -2221kj

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

In a spacecraft, the following reaction occurs: co2(g) + 2lioh(s) -> lico3(s) + h2o(i) (i attached picture of equation) how many liters of carbon dioxide will 4 moles of lithium hydroxide (lioh) absorb? (one mole of any gads occupies 22.4 l under certain conditions of temperature and pressure. assume those conditions for this equation.) 45l 6.0l 3.0l 34l

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?