I have a glass of water at room temperature, kept inside a closed room. I get a hot mug of coffee, keep it on another table, and get so busy I completely forget about it. As the coffee cools down, what happens to the temperature of the glass of water?
Stays absolutely unaffected, since it is on another table
The coffee cools down; the water also cools down with time
The water gets warmer
Cannot say from the given information