An imaginary reaction X → Y takes place in three steps X → A, ∆H = –q 1 ; B → A, ∆H = –q…
Chemistry · JEE Main · NTA Exams — Chemical Thermodynamics
An imaginary reaction X\(\text { → }\)Y takes place in three steps
X\(\text { → }\)A, ∆H = –q1; B\(\text { → }\)A, ∆H = –q2, B\(\text { → }\)Y, ∆H = –q3
If Hess’ law is applicable, then the heat of the reaction (X\(\text { → }\)Y) is:
X\(\text { → }\)A, ∆H = –q1; B\(\text { → }\)A, ∆H = –q2, B\(\text { → }\)Y, ∆H = –q3
If Hess’ law is applicable, then the heat of the reaction (X\(\text { → }\)Y) is:
- q1–q2+q3
- q2–q3–q1
- q1–q2–q3
- q3–q2–q1
Answer
(B) q 2 –q 3 –q 1
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