Anonymous
Anonymous asked in Science & MathematicsChemistry · 8 years ago

# For this reaction, C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, the ∆H is –2200 kJ.?

For this reaction, C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, the ∆H is –2200 kJ. If two moles of C3H8(g) reacted with excess oxygen, which of the following would be true?

A) 1100 kJ of heat would be released to the surroundings.

B) 4400 kJ of heat would be absorbed by the system.

C) 1100 kJ of heat would be absorbed by the system.

D) 4400kJ of heat would be released to the surroundings.

Relevance
• John
Lv 7
8 years ago

The formula shows that burning 1 mole of propane (C₃H₈) liberates 2200kJ of thermal energy. If we burn 2 moles instead, we can expect to liberate 4400-kJ of thermal energy. Answer "D" is best.

• zulauf
Lv 4
4 years ago

solid good length for an grownup, dude. maximum men attain finished penis length by using 14 or 15, and the traditional length variety for seventy six% of all men is 5.4 to six.2 inches. so which you're nicely interior the p.c... in basic terms 12% of all men are over 6.2 inches, below 5% are 7 or longer. So all they men claiming super equipment- they lie. remember of direction that maximum all men lie approximately top, penis length and how efficient they have been at intercourse.