I (8%) Problem 12: A 12.0 Vb aluminum from 20.0°C to 35.0°C. ted bottle warmer h

Question

I (8%) Problem 12: A 12.0 Vb aluminum from 20.0°C to 35.0°C. ted bottle warmer heats 56 g of glass, 2.6 x 102 g of baby formula, and 1.75 x 102 g of here for iled view m Status by the battery in C? You may assume the specific heat of baby formula is approximately the same as for water, and the specific heat of glass is 0.840 Jg"C), and the specific heat of aluminium is 0.900 | J(gC). Completed Completed Completed 1620.60 9.1621 VCorrect! q | Grade Summary Completed Completed Completed Potential 100%

Explanation / Answer

Part (a) you have already solved. So, I am solving only Part (b) considering the answer of Part (a) correct.

Part (b) -

Quantity of charge flowed in 5.0 min = 1620.60 C

Charge of an electron, e = 1.60 x 10^-19 C

So, no. of electrons in 1620.60 C charge, N = 1620.60 / (1.6 x 10^-19) = 1.013 x 10^22

5.0 min = 5.0 x 60 = 300 s

Therefore, no. of electrons flowed per second = (1.013 x 10^22) / 300 = 3.38 x 10^19 (Answer)

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