It is a hot summer day and you want to make some iced tea for you and your friends. Iced tea is made by adding ice to 1.8 kg of hot tea. The hot tea is initially at 65°C. 1.2 kg of ice, initially at -15°C, is placed in the tea and allowed to come to thermal equilibrium inside a large, well-insulated thermos. You can assume the hot tea is essentially all water. ▼ Part A How many Joules are required to change the 1.2 kg of ice at -15°C completely into water at 0°C? (Note this is a positive value) 4.34x105 Joules Submit Previous Answers Correct Correct answer is shown. Your answer 433800 Joules was either rounded differently or used a different number of significant figures than required for this part. Part B What is the final temperature (in Celsius) of this hot tea/ice mixture as it is allowed to come to thermal equilibrium in the large, well-insulated thermos? ==| ΑΣΦ ? Celsius Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ▼

It is a hot summer day and you want to make some iced tea for you and your friends. Iced tea is made by adding ice to 1.8 kg of hot tea. The hot tea is initially at 65°C. 1.2 kg of ice, initially at -15°C, is placed in the tea and allowed to come to thermal equilibrium inside a large, well-insulated thermos. You can assume the hot tea is essentially all water. ▼ Part A How many Joules are required to change the 1.2 kg of ice at -15°C completely into water at 0°C? (Note this is a positive value) 4.34x105 Joules Submit Previous Answers Correct Correct answer is shown. Your answer 433800 Joules was either rounded differently or used a different number of significant figures than required for this part. Part B What is the final temperature (in Celsius) of this hot tea/ice mixture as it is allowed to come to thermal equilibrium in the large, well-insulated thermos? ==| ΑΣΦ ? Celsius Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ▼