If heat is added to a substance while it remains in the same phase, then

a$)$ the mass of the substance decreases.

b$)$ the temperature of the substance decreases.

c$)$ the mass of the substance increases.

d$)$ the temperature of the substance increases.

During the water vaporization process, which changes the state from liquid to gas, the added heat

a$)$ causes the vaporization process and increases the temperature in the same time.

b$)$ causes the vaporization process while the temperature stays constant at $T=373\mathrm{.}15K.$

c$)$ causes the vaporization process and decreases the temperature in the same time.

d$)$ causes the vaporization process while the temperature stays constant at $T=0C.$