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The sum of the first \(n\) terms of the series
\(1^2 + 2 . 2^2 + 3^2 + 2 . 4^2 + 5^2 + 2.6^2 + ... is\)
\(n(n+1)^2 \over 2\), when \(n\) is even. When \(n\) is odd, the sum is
Updated Wed, 24 Oct 2018 05:00 pm
Plz give me answers for this question
An amount of solid NH\(_4\)HS is placed in a flask already containing ammonia gas at a certain temperature and 0.50 atm pressure. Ammonium hydrogen sulphide decomposes to yield NH\(_3\) and H\(_2\)S gases in the flask. When the decomposition reaction reaches equilibrium, the total pressure in the flask rises to 0.84 atm. The equilibrium constant for NH\(_4\)HS decomposition at this temperature is -
(a) 0.18
(b) 0.30
(c) 0.11
(d) 0.17
Updated Tue, 23 Oct 2018 10:55 am