Multiple Choice
2 LiOH(s) → Li2O(s) + H2O(l) ΔrH° = 379.1 kJ/mol
LiH(s) + H2O(l) → LiOH(s) + H2(g) ΔrH° = -111.0 kJ/mol
2 H2(g) + O2(g) → 2 H2O(l) ΔrH° = -285.9 kJmol
Compute ΔrH° in kJ/mol for 2 LiH(s) + O2(g) → Li2O(s) + H2O(l)
A) +125.2 kJ/mol
B) -17.7 kJ/mol
C) -128.8 kJ/mol
D) -303.6 kJ/mol
E) + 128.8 kJ/mol
Correct Answer:

Verified
Correct Answer:
Verified
Q51: 500 g of Al is heated to
Q52: 1674 J of heat are absorbed by
Q53: What is the reaction for the standard
Q54: 1219 joules of heat raise the temperature
Q55: Complete combustion of 75.0 g acetylene,C<sub>2</sub>H<sub>2</sub>,liberated 3750
Q57: Determine the enthalpy change in the following
Q58: Which of the following has a standard
Q59: Given the following thermochemical equations:<br><img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5343/.jpg" alt="Given
Q60: The heat of combustion of methane is
Q61: Although CO is not toxic,there is concern