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anonymous
 one year ago
Which of these reactions are endothermic reactions?
a. SOCl2(l) + H2O(l) → SO2(g) + 2 HCl(g) ΔH = +10.3 kJ
b. PCl3(l) + 1/2 O2(g) → POCl3(l) ΔH = 325.7 kJ
c. P(s) + 3/2 Cl2(g) → PCl3(l) ΔH = 306.7 kJ
d. 2 Cl2(g) + 2 H2O(l) → 4 HCl(g) + O2(g) ΔH = +202.6 kJ
anonymous
 one year ago
Which of these reactions are endothermic reactions? a. SOCl2(l) + H2O(l) → SO2(g) + 2 HCl(g) ΔH = +10.3 kJ b. PCl3(l) + 1/2 O2(g) → POCl3(l) ΔH = 325.7 kJ c. P(s) + 3/2 Cl2(g) → PCl3(l) ΔH = 306.7 kJ d. 2 Cl2(g) + 2 H2O(l) → 4 HCl(g) + O2(g) ΔH = +202.6 kJ

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nechirwan
 one year ago
Best ResponseYou've already chosen the best response.0what is mean of endothermic reactions?

nechirwan
 one year ago
Best ResponseYou've already chosen the best response.0Endothermic Reactions A system of reactants that absorbs heat from the surroundings in an endothermic reaction has a positive ΔH

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@anitasonia98 can you help me with this i dont understand it at all

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@nechirwan okay i get the positive thing but that would still leave A and D as options for the answer

nechirwan
 one year ago
Best ResponseYou've already chosen the best response.0so the other are exothermic reaction !!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sure! Endothermic reactions have a positive delta H, since they draw in heat for the reaction to take place. Exothermic have a negative delta H, since they release heat. So you've narrowed down your choices to two answers. I think it's a matter of googling these two reactions :3 I would say D, but I'm not sure.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@anitasonia98 thank you! :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0exothermic reaction releases heat meaning it associate its self with a negative sign and endothermic reaction needs energy and associates itself with + sign

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@twelveroses Np! Google is your best friend with some of these questions :)
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