yessijessiHaley

02.11.2019 • 

Chemistry

Which statement regarding the second law of thermodynamics is true?

a.
heat can transfer from a cold to a hot body without converting a certain amount of work to heat energy.

b.
heat cannot transfer from a hot to a cold body without converting a certain amount of work to heat energy.

c.
heat cannot transfer from a cold to a hot body without converting a certain amount of work to heat energy.

d.
heat cannot transfer from a cold to a hot body without transferring mass first.

Ответ:

gonzagaj325

08.01.2022

Chemistry

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The Second Law of Thermodynamics says that processes that involve the transfer or conversion of heat energy are irreversible. ... The First Law of Thermodynamics states that energy cannot be created or destroyed; the total quantity of energy in the universe stays the same.

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Ответ:

trippyjazmine

28.07.2022

Chemistry

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Remove the parentheses, use LCM (least common multiplier), adjust fractions based on the LCM, since denominators are equal, combine the fractions, subtract. Your answer would be: -5/12.

Step-by-step explanation:

Steps to the words I said but in fraction step:

3/4 + (-1/2) + (-2/3)

3/4 - 1/2 - 2/3

9/12 - 6/12 - 8/12

9-6-8/12

-5/12

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