Suppose that 50.0 g of H₂O(l) at 20.0°C is mixed with 65.0 g of H₂O(l) at 50.0°C at constant atmospheric pressure in a thermally insulated vessel. Calculate ΔS of the hot and cold water, and ΔStot for the process. Given the specific heat capacity of water is 4.184 J·K⁻¹·g⁻¹.
a) ΔSₕot = 44.9 J/K, ΔS_cold = -33.7 J/K, ΔStot = 11.2 J/K
b) ΔSₕot = -44.9 J/K, ΔS_cold = 33.7 J/K, ΔStot = -11.2 J/K
c) ΔSₕot = 33.7 J/K, ΔS_cold = -44.9 J/K, ΔStot = -11.2 J/K
d) ΔSₕot = -33.7 J/K, ΔS_cold = 44.9 J/K, ΔStot = 11.2 J/K