Author Question: What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL ... (Read 92 times)

nevelica · **on:** Aug 27, 2018

What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL of solution having a density of 1.25 g/mL by 3.33 C? (The specific heat of the solution is 3.74 J/g-K.)

A) -7.43 kJ
B) -12.51 kJ
C) 8.20 kJ
D) -3.89 kJ
E) 6.51 kJ

Question 2

SO2Cl2 decomposes in the gas phase by the reaction SO2Cl2 (g) SO2 (g) + Cl2 (g)

The reaction is first order in SO2Cl2 and the rate constant is 3.0 10-6 s-1at 600 K. A vessel is charged with 3.6 atm of SO2Cl2 at 600 K. The partial pressure of SO2Cl2 at 3.0 105 s is ________ atm.
A) 0.85
B) 3.2
C) 1.5
D) 0.19
E) 9.3 104

Question 3

The correct name for HBrO4 is ________.

A) hydrobromic acid
B) perbromic acid
C) bromic acid
D) bromous acid
E) hydrobromous acid

izzat · **Reply #1 on:** Aug 27, 2018

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