(a) Suppose you are heating water (229 g) in a mug that you have placed in a microwave oven. As you wait to ad - microwave data systems
(a) Take the hot water (229 g) in a cup that you microwave in one. In the meantime, you can immediately add chocolate, calculated from the following data, the amount of energy as heat, which has absorbed the water: The temperature of spring water was 16.7 ° C. When you remove the cup of hot water, the temperature rose to 94 ° C.
____kJ
(b) What information is needed to determine the heat absorbed by the cup? (Select all that) may be used singly or in combination.
Heat ____specific
____total heat absorbed by the system
____heat Capacity
____total heat of the environment
Saturday, January 2, 2010
Microwave Data Systems (a) Suppose You Are Heating Water (229 G) In A Mug That You Have Placed In A Microwave Oven. As You Wait To Ad
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3 comments:
Others (229g) (94 ° C - 16.7 ° C) * 4186 joules / g ° C
b. You need to know the heat capacity of the cup.
This experience is a security risk. Water into a cup in the microwave can overheat. If you get a bad cook, if the hot chocolate powder.
No sarcasm, but we need to know the material was cut. The exact shape (diameter and length) of the section must be known. The microwave power could be useful.
As water is heated up some of the heat energy is absorbed by the cup. What is the weight of the Cup? How much time they spend in the micro.
Please specify the material, weight, diameter and length (height) of the cup. How long will this cut is (fully?) With water in a microwave? How long was the bus? - Power?
In reality, would make such experiments, *** *** in any way challenging to find. Many variables.
(Mass x SH x Delta T ° C = joules or calories.
a) ... 229g x 4.184J / g / ° C x 77,3 ° C Delta T
......= 74.064kJ = 74,064 Joules.
b). HS are necessary and that the mass of the shell and the total heat absorbed by the system.
(I do not think you live, but simply a nice, warm but not boiling cup of hot chocolate before bed.
Nucleation, as in the previous answer is very rare in the use of a microwave oven).
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