Agas at 89 degrees c occupies 125.7ml at 123.3kpa. what volume does it occupy at 25 degrees c and 100.9kpa?

we can use the combined gas law equation

this shows the relationship between pressure, volume and temperature for a fixed mass of gas.

P1 is pressure, V1 is volume and T1 is temperature in Kelvin for the first instance

P2 is pressure, V2 is volume and T2 is temperature for the second instance.

Temperature is given in °C we have to convert it to Kelvin

T1 is - 89 °C + 273 = 362 K

T2 is - 25 °C + 273 = 298 K

substituting the given values in the equation

V2 = 126.4 mL

the final volume is 126.4 mL

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.