Chemistry
2023 · Paper 1
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Complete GATE CY 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 64–65 of 65. Imported answers require review unless explicitly marked reviewed.
Question 64
Open questionCYNAT2 marksNeeds review
For the galvanic cell: H₂ (g) | HCl (aq) | Cl₂ (g)
the standard electromotive force (E⁰) value is given by
where E⁰ is in Volts and T is in Kelvin.
For the cell reaction, the standard enthalpy change (ΔᵣH⁰) at 300 K is ______ kJ mol⁻¹ (rounded off to the nearest integer)
(Given: Faraday constant, F = 96500 C mol⁻¹)
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Open questionCYNAT2 marksNeeds review
A solution of three non-interacting compounds P, Q, and R is taken in a cuvette of 1 cm path length. Their concentrations are [P] = 1×10⁻⁶ M, [Q] = 2×10⁻⁶ M, [R] = 3×10⁻⁶ M and the molar extinction coefficients at 300 nm are εₚ = 1×10⁵ M⁻¹ cm⁻¹, εQ = 2×10⁵ M⁻¹ cm⁻¹ and εR = 3×10⁵ M⁻¹ cm⁻¹. The % transmittance at 300 nm is ______ (rounded off to two decimal places)
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