Un tanque de aire de un buceador contiene 30 litros (Volumen) de aire a 20°C (Temperatura) y 15 atm (presión).
Calcular el volumen del aire en condiciones normales. (Condiciones
normales de P y T = temperatura de 0°C (o 273,15 K, trabajaremos 273
K) y a una presión de 1 atm.

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

The excretory system,need answers for all: )