Beryllium has roughly one-half the specific heat of liquid water (H2O). Rank the

Question

Beryllium has roughly one-half the specific heat of liquid water (H2O). Rank the quantities of energy input required to produce the following changes from the largest to the smallest. In your ranking, note any cases of equality. (Use only the symbols > or =, for example a>b=c) (a) raising the temperature of 1 kg of H2O from 20

Explanation / Answer

Q=mC?T 3. The attempt at a solution For (a) I get 25116 J For (b) I get 25116 J For (c) I get 25116 J For (d) I get 12558 J For (e) I get 25116 J So the answer I put in is a=b=c=e>d but it tells me it's incorrect. I found these answers simply by subtracting the final temperature from the initial, multiplying it by the mass and multiplying by the specific heat of water where relevant. For d I used 2093 as my specific heat, and for the rest I used 4186.

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