Carbon-14 forms nitrogen-14 by
a. alpha decay.
b. beta decay.
c. gamma decay.
d. none of the above

B. Beta decay

Beta decay occurs when a high-speed electron is lost from the atom, converting one of the atom's neutrons into a proton. The mass number of the atom then remains the same but its atomic number is increased by one.

This is the decay taking place because the transition from carbon-14 to nitrogen-14 involves an increase in atomic number by 1.

We first assume that this gas is an ideal gas where it follows the ideal gas equation. the said equation is expressed as: pv = nrt. from this equation, we can predict the changes in the pressure, volume and temperature. if the volume and the temperature of this gas is doubled, then the pressure still stays the same.

The answer you are looking for is option d