Question

Q1 You would like to make 1 cup of tea. In order to do so, you must bring 1 cup of water (237 mL) to boil up from room temperature (23°C).

How much heat is required to boil 1 cup of room temperature water? Give your answer in Joules but do not include the units:

Q2.

Rather than boiling the water on the stove or over a fire, you decide to boil the water in the microwave. Given that most microwaves have a power of 400 W, how much time does it take to boil the water when the microwave works at full capacity?

Give your answer in seconds but do not include the units:

Q3

You then read on the internet that the ideal brewing temperature for tea depends on the tea variety. The tea you have, green tea, brews best at 77°C--anything higher and it becomes too bitter. How much heat must the boiling water lose to be at the right temperature for green tea?

Give your answer in Joules but do not include the units:

Answer 1