Author Question: How much heat is released when 85.0 g of steam at 100.0 C is cooled to ice at -15.0 C? The enthalpy ... (Read 91 times)

jazziefee · **on:** Jul 8, 2021

Question 1

For the reaction: CO(g) + 2 H₂(g) → CH₃OH(g)

K_p = 91.4 at 350 K and K_p = 2.05 × 10^-4 at 298 K.

What is the value of Δ_rH°?
◦ 49.9 kJ/mol
◦ 2.08 × 10³ kJ/mol
◦ 3.74 × 10^-2 kJ/mol
◦ 217 kJ/mol
◦ 446 kJ/mol

Question 2

How much heat is released when 85.0 g of steam at 100.0 °C is cooled to ice at -15.0 °C? The enthalpy of vaporization of water is 40.67 kJ mol^-1, the enthalpy of fusion for water is 6.01 kJ mol^-1, the molar heat capacity of liquid water is 75.4 J mol^-1°C^-1, and the molar heat capacity of ice is 36.4 J mol^-1°C^-1.
◦ 54.8 kJ
◦ 221 kJ
◦ 258 kJ
◦ 281 kJ

epscape · **Reply #1 on:** Jul 8, 2021

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 55% of students answer this correctly