Calcule a variação de entropia quando, num processo à pressão constante de 1,0 atm, se transforma integralmente em vapor 3,0 kg de água, que se encontram inicialmente no estado líquido, à temperatura de 100°C

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.