Answer to Question #176077 in General Chemistry for Cole Coffman

Question

How much energy is released when 546.0 grams of water at 5.000C is heated to 87.50C under constant pressure of 1.00 atm?

Answer 1

q = m c $\Delta T$

q = heat released

c = specific heat of water = 4.186 j/g⁰C

$\Delta T$ = T₂ - T₁ = 87.50⁰C - 5⁰C = 82.50⁰C

m = 546 g

q = 546×4.186×82.50

q = 188,558.37 joules energy is Released