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

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

a The internal energy of the toaster decreases as the internal energy of the bread increases

b Heat enters the bread and the internal energy of the toaster decreases

c Work is done to the bread and the internal energy of the toaster decreases

d Work is done to the bread and heat enters the bread

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

a q=–,w=+

b q=+,w=–

c q=+,w=+

d q=–,w=–

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

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

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

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

Solutions

Expert Solution

queen_honey_blossom answered 7 months ago

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