A cup contains 500 g water initially at a temperature of 100oC. This cup is put in a large
room of temperature of 20oC.
a/ What will be the temperature of the water if the cup stays in the room for a long time? Explain your
answer.
b/ Compute the change of entropy of the system water – room, knowing that the heat capacity of water is
4186 J/(kg. K).
Answers: 3
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Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
Physics, 22.06.2019 18:20, shongmadi77
Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
Answers: 1
Physics, 22.06.2019 18:50, naiomireyes74p2aybs
What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.
Answers: 2
A cup contains 500 g water initially at a temperature of 100oC. This cup is put in a large
room of...
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