Question

Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air ?

1. increase in pressure
2. ncrease in temperature
3. decrease in pressure
4. decrease in temperature

Options

• (i) and (ii)

• (i) and (iii)

• (ii) and (iii)

• (ii) and (iv)

Answer 1

(ii) and (iii)

Increase in temperature and decrease in pressure are the two factors responsible for the change of solid carbon dioxide into gas.