1) For the gas flame question i put: because heat is lost to the surroundings as it is only concentrated on one section of the pan, and the efficiency is decreased because the flame also produces sound and light so not all of it is useful output
2) For the mug question what effects the rate of transfer i put: amount of coffee in contact with the mug and the temperature difference between the coffee and the mug
How many marks do you think i will get??
How are you celebrating?