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  3. 1) a piece of bread is inserted into a toaster and

1) A piece of bread is inserted into a toaster and begins to toast. Identify the...

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Chemistry

1) A piece of bread is inserted into a toaster andbegins to toast. Identify the correct statement.

a The internal energy of the toaster decreasesas the internal energy of the bread increases

b Heat enters the bread and the internal energyof the toaster decreases

c Work is done to the bread and the internalenergy of the toaster decreases

d Work is done to the bread and heat enters thebread

2) If a system is doing work on its surroundings, andgaining heat from its surroundings, then which of the followingshows the correct signs for heat and work representing thesystem?

a q=–,w=+

b q=+,w=–

c q=+,w=+

d q=–,w=–

3. What is the difference between heatcapacity (CV) and specific heat capacity(c)?

a CV refers to isochoricconditions, whereas c does not refer to isochoric conditions

b c considers the whole system, whereasCV considers only a unit mass of the system

c CV considers the wholesystem, whereas c considers only a unit mass of the system

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