Q.
Contact process is used in the formation of sulphur trioxide, 2SO2(g)+O2(g)⇌2SO3(g)The rate of reaction can be expressed as −ΔO2Δt=2.5×10−4mol L−1s−1Then rate of disappearance of [SO2] will be
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a
50.0×10−5mol L−1s−1
b
3.75×10−4mol L−1s−1
c
2.5×10−4mol L−1s−1
d
4.12×10−4mol L−1s−1
answer is A.
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Detailed Solution
−ΔSO2Δt=2−ΔO2Δt∴ −ΔSO2Δt=2×2.5×10−4mol L−1s−1 =5.0×10−4mol L−1s−1=50.0×10−5mol L−1s−1
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