8. For each of the following steps, state which of the quantities, U, H, S, G, A

Question

8. For each of the following steps, state which of the quantities, U, H, S, G, A are equal to zero for system specified: (a) a nonideal gas is taken around a Carnot cycle (b) a nonideal gas is adiabatically expanded (c) An ideal gas is adiabatically expanded (d) Liquid water is vaporized at 100 oC and 1 atm (e) H2 and O2 react to form H2O in a perfectly thermally isolated container (f) HCl and NaOH react to form H2O and NaCl in an aqueous solution at constant T and P.

8. For each of the following steps, state which of the quantities, AU, AH, AS, AG, AA are equal to zero for system specified (a) a nonideal gas is taken around a Carnot cycle (b) a nonideal gas is adiabatically expanded (c) An ideal gas is adiabatically expanded (d) Liquid water is vaporized at 100 °C and 1 atm (e) H2 and O2 react to form H2O in a perfectly thermally isolated container (f) HCI and NaOH react to form H2O and NaCl in an aqueous solution at constant T and P

Explanation / Answer

SOLUTION:

a) a nonideal gas is taken around a Carnot cycle:

delta U, delta H, delta S, delta G and delta A all are equal to zero.

(b). a nonideal gas is adiabatically expanded:

delta H is equal to zero.

(c). An ideal gas is adiabatically expanded.

delta S is equal to zero.

(d). Liquid water is vaporized at 100 oC and 1 atm.

delta G is equal to zero.

(e) H2 and O2 react to form H2O in a perfectly thermally isolated container:

delta U is equal to zero.

(f) HCl and NaOH react to form H2O and NaCl in an aqueous solution at constant T and P.

None of them is zero.

Related Questions

Navigate

• Browse (All)
• Browse 8
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.