QUESTION 7 H2 and F2 react according to the following equation, forming HF. H2 + F2...

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science chemistry

Answer 1

Answer #1

Answer:- (A) exothermic, the water temperature in the calorimeter temperature would rise

H2(g) + F2(g) → 2HF(g); ∆H° = –271 kJ

so according to the above reaction ∆H° value is negative that means that it is evolving heat during the reaction that this reaction is exothermic.

here we are using the clorimeter to measure the heat change

so the temperature of water will increase when reaction will happen

so the correct answer is A

Answer 2

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