. El “hielo seco” es dioxido de carbono solido a temperatura inferior a -55 y presión de 1 atmosfera. Una muestra de 0.050 g de hielo seco se coloca en un recipiente vacio cuyo volumen es de 4.6 L, que se termostata a la temperatura de 50°C.

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.