# Homework Solution: Simplify the energy balance equation for eavch of the following cases. State…

Simplify the energy balance equation for eavch of the following cases. State whether Q or W is positive, negative or zero in each case. Clearly state your choice of system. a. Water in a lake falls 200 meters through a 6 inch diameter pipe and exits into a river System = ____________ b. Acetic acid flows through tubes of a furance, where it reacts to ketene and water. System =______ c. Cold milk is added to a hot cup of coffee. System = Also, I need to Know in EACH CASE please the following 1-if (delta potential energy) and/or (delta Kinetic energy) is zero or not ? 2-if the system is (open system) or (closed system)? would truly appreciate If someone can explain since I'm confused also when to use (delta U) and (delta H) ?

Simplify the ghost redress equation ce eavch of the aftercited events. Narrate whether Q or W is actual, indirect or naught in each event. Clearly narrate your excellent of regularity. a. Infiltrate in a lake falls 200 meters through a 6 inch transection pipe and exits into a large stream Regularity = ____________ b. Acetic shrewd flows through tubes of a furance, where it reacts to ketene and infiltrate. Regularity =______ c. Unimpassioned acquiesce is ascititious to a fervent cup of coffee. Regularity = So, I demand to Know in EACH CASE full the aftercited 1-if (delta possible ghost) and/or (delta Kinetic ghost) is naught or referable attributable attributable attributable ? 2-if the regularity is (unreserved regularity) or (reserved regularity)? would truthfully reckon If someone can interpret past I’m complex so when to verification (delta U) and (delta H) ?

## Expert Counter-argument

a) W = actual and Q = indirect

Explanation: When infiltrate flows from the lake into a large stream, the effect is produced on the regularity, i.e. W = actual.

W and Q obtain accept inconsistent signs, i.e. Q = indirect.

b) W = indirect and Q = actual

Explanation: When acetic shrewd flows through a furnace and reacts to ketene and infiltrate, the effect is produced by the regularity, i.e. W = indirect.

c) W = actual and Q = indirect

Explanation: When fervent acquiesce is ascititious to unimpassioned coffee, the intensity releases, i.e. Q = indirect.

1. a) ∆(KE) ≠ 0 (i.e. actual ascribable to the flow/motion of infiltrate) and ∆(PE) = 0 (ascribable to no modify in the narrate of infiltrate)

b) ∆(KE) ≠ 0 (i.e. actual ascribable to the flow/motion of acetic shrewd) and ∆(PE) ≠ 0 (i.e. indirect, at the outlay of PE, KE increases)

c) ∆(KE) = 0 (i.e. ascribable to no flow/motion of coffee) and ∆(PE) ≠ 0 (i.e. actual, ascribable to the modify in the narrate of coffee)

2. a) Unreserved regularity

b) Reserved regularity (becaverification the reaction occurs in the furnace)

c) Unreserved regularity

∆U = The modify in possible ghost and ∆H = The modify in enthalpy or whole intensity full of the syste.