subject
Engineering, 04.10.2019 21:20 hrcatena

You wish to buy a new freezer for your basement. the primary use of the freezer will be to prepare ice for family parties. you have a very large family, with grandparents, parents, sisters, brothers, uncles, aunts, cousins, nephews, nieces, and grandchildren. as a result, family birthday parties are held every couple of weeks, and you need lots of ice for drinks. you want the freezer to convert 10.2 kg of water at 21.5°c to 10.2 kg of ice at −9.2°c in 2.00 h. but, in order to keep your electric bill down, you want the power rating of the freezer to stay below 100 w. from these requirements, you determine the minimum cop of the freezer that will satisfy your needs. (consider that the specific heat of water is 4,186 j/(kg · °c), the specific heat of ice is 2,090 j/(kg · °c), the latent heat of fusion of water is 3.33 ✕ 105 j/kg, and the latent heat of vaporization of water is 2.26 ✕ 106 j/kg.)

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
question
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
question
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
question
Engineering, 04.07.2019 18:20
Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms
Answers: 2
You know the right answer?
You wish to buy a new freezer for your basement. the primary use of the freezer will be to prepare i...
Questions
question
Mathematics, 01.07.2019 14:30
Questions on the website: 13722360