about 2 grams
At least 25.
cup of hot cocoa (hot chocolate)
no
Hot air rises.
One healthy hot cocoa recipe is 1 cup of milk, 1/2 vanilla bean split, 3 ounces of milk chocolate. If one uses low fat milk and chocolate in the recipe, it will be a healthier drink.
Assuming you have a cup of hot cocoa, then the heat transfer is by conduction
An energy conversion that takes place when you warm a cup of hot cocoa in a microwave is a transfer of heat from the microwave's microwaves to the hot cocoa.
The plural is cocoas, when referring to various types of processed cocoa, or when ordering more than one cup of the hot drink.
That means that heat energy is transferred from the hot cup, to the hands.
Because the warm hot chocolate warms the cup and the cup warms your hands. also if you put your hands over the cup and feel the steam that will warm your hands.
Baking cocoa has no sweetner in it. It's extremely bitter. Chocolate cocoa is generally in a mix and already has sugar and the like. It's meant for drinking and not baking. Also Baking chocolate has more of the cocoa fat in it. Drinking cocoa has been processed to remove much of the fat.
One cup of chocolate can be anywhere from 170 to 240 calories, depending on if it is milk chocolate, white chocolate, dark chocolate, and the percents of cocoa in it.