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ashleeeeeeee7373 ashleeeeeeee7373
  • 16-01-2017
  • Chemistry
Answered

How much energy is needed to warm 7.40g of water by 55 degress C?

Verified Answer :

AnnaMarie714
AnnaMarie714 AnnaMarie714
  • 16-01-2017

E = mCdT

E = energy, m = mass, C = specific heat capacity, dT = change in temperature.

526 = 0.074C x 17

E = 0.074C x 55

Divide the equations

E/526 = (0.074C x 55)/(0.074C x 17) = 55/17

E = (55 x 526)/17 = 1702 J

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