- #1
quietrain
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Homework Statement
if i have reaction A + B --> D
if i produce 1 mol of D, what is the entropy change?
how much heat is transferred?
is this exothermic or endothermic?
Homework Equations
reaction carried out at T = 300K,
molar heat capacities(constant Pressure),
CA = 5sqrt(T)
CB = 8sqrt(T)
CD = 12sqrt(T)
The Attempt at a Solution
change in s = ∫ dQ / T right?
so ∫ Cp dT /T
but what are my limits for my Temperature?
is it right to say since they equalize at some temperature, i don't need to know my upper bound?
so i take CD - (CB + CA) to get -1sqrt(T) ?
so Q = CpT = -1(sqrt300) * 300
so since it is -ve, heat is released, and reaction is exothermic?
thanks