Helio gaseo con un volumen de 2,60 L a 0,180 atm de presión y una temperatura de 41,0 "C, se calienta hasta duplicar la presión y el volumen. a) Calcule la temperatura final. (4 puntos) b) ¿Cuántos gramos de helio hay? La masa molar del helio es de 4,00 g/mol. (4 puntos)

Sorry i don’t know what to do

Need more information like a picture

Hello,the answers iron,  hope this

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.