Interconversion of matter is a constant temperature process,
because when matter is changing states,For example:-In ice,
you must have observed during the experiment of melting that the temperature of the system does not change after the melting point is reached, till all the ice melts this happens even though we continue to heat the beaker, that is, we continue to supply heat. This heat gets used up in changing the state by overcoming the forces of attraction between the particles.
As this heat energy is absorbed by ice without showing any rise and temperature, it is considered that it gets hidden into the contents of the beaker and is known as the latent heat.
The answer is 10 because when the kid turns 6 the brother would be 1 and when the kid is 7 the brother will be 2 and so on. or you can subtract 15-5
I would say all of the sentences except the lowercase book name example