Author Question: In order to cool a cup of hot tea, someone adds some cold milk and then waits 5 minutes. Would the ... (Read 35 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
In order to cool a cup of hot tea, someone adds some cold milk and then waits 5 minutes. Would the tea have been cooler at the end of the 5-minute period if the person first waited 5 minutes and then added the cold milk? Assume that the temperature of the milk is the same whenever it is to be added.
  1.No, the tea would be cooler after 5 minutes if the cold milk were added as soon as possible.
  2.Yes, the tea would be cooler after 5 minutes if the cold milk were added at the end of the 5-minute period.
  3.The final temperature of the tea would be the same in either case.
  4.The one that would be cooler depends on the actual temperatures and amounts of the tea and the milk.

Question 2

Which curve would have the smallest slope? Assume no phase changes take place.
  1.the temperature of water versus added energy
  2.the temperature of ice versus added energy
  3.the temperature of steam versus added energy
  4.They would all have the same slope.



aidanmbrowne

  • Sr. Member
  • ****
  • Posts: 305
Answer to Question 1

2

Answer to Question 2

1



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

For a complete list of videos, visit our video library