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Home Q & A Board Science-Related Homework Help Physics Astronomy
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claudiawong05 claudiawong05
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6 years ago
A camper is about to drink his morning coffee. He pours 400 grams of coffee, initially at 75.0C into a 250-g aluminum cup, initially at 16.0C.
 
  What is the equilibrium temperature of the coffee-cup system, assuming no heat is lost to the surroundings? The specific heat of aluminum is 900J/(kgK). Assume that the specific heat of coffee is the same as the specific heat of water. A) 45.5C
  B) 62.0C
  C) 65.0C
  D) 68.0C
  E) 71.0C

Question 2

Consider capacitors C1, C2, and C3, which are connected in series in a closed loop. A switch is placed between C1 and C2. With the switch open, C1is charged to 12.0 volts by a battery. The battery is then disconnected and the switch is closed.
 
  Determine the final charge on each capacitor, and the potential difference across each, given that C1 = 2.00 F, and C2 = C3 = 3.00 F.

Question 3

A sample of a diatomic ideal gas occupies 33.6 L under standard conditions. How many moles of gas are in the sample?
 
  A) 3.0
  B) 4.5
  C) 1.5
  D) 2.0
  E) 0.75
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dymasrajadymasraja
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6 years ago
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claudiawong05 Author
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6 years ago
Now I'm convinced to ask more questions Slight Smile
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