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An-open-vessel-at-27-C-is-heated-until-3-5-parts-of-the-air-in-it-has-been-expelled-Assuming-that-the-volume-of-the-vessel-remains-constant-find-the-temperature-to-which-the-vessel-has-been-heated

Question Number 18202 by Tinkutara last updated on 16/Jul/17 $$\mathrm{An}\:\mathrm{open}\:\mathrm{vessel}\:\mathrm{at}\:\mathrm{27}°\mathrm{C}\:\mathrm{is}\:\mathrm{heated}\:\mathrm{until} \\ $$$$\frac{\mathrm{3}}{\mathrm{5}}\:\mathrm{parts}\:\mathrm{of}\:\mathrm{the}\:\mathrm{air}\:\mathrm{in}\:\mathrm{it}\:\mathrm{has}\:\mathrm{been}\:\mathrm{expelled}. \\ $$$$\mathrm{Assuming}\:\mathrm{that}\:\mathrm{the}\:\mathrm{volume}\:\mathrm{of}\:\mathrm{the}\:\mathrm{vessel} \\ $$$$\mathrm{remains}\:\mathrm{constant},\:\mathrm{find}\:\mathrm{the}\:\mathrm{temperature} \\ $$$$\mathrm{to}\:\mathrm{which}\:\mathrm{the}\:\mathrm{vessel}\:\mathrm{has}\:\mathrm{been}\:\mathrm{heated}. \\ $$ Answered by ajfour last updated…

Question-149274

Question Number 149274 by BHOOPENDRA last updated on 04/Aug/21 Answered by Olaf_Thorendsen last updated on 05/Aug/21 $$\frac{{d}^{\mathrm{2}} {y}}{{dx}^{\mathrm{2}} }−\mathrm{3}\frac{{dy}}{{dx}}+\mathrm{2}{y}\:=\:{e}^{{x}} \:\:\:\:\left(\mathrm{E}\right) \\ $$$$\mathrm{Let}\:{y}\:=\:{e}^{{x}} {u},\:{y}'\:=\:{e}^{{x}} \left({u}'+{u}\right),\:{y}''\:=\:{e}^{{x}} \left({u}''+\mathrm{2}{u}'+{u}\right)…

What-is-the-equivalent-weight-of-KH-IO-3-2-as-an-oxidant-in-presence-of-4-N-HCl-when-ICl-becomes-the-reduced-form-K-39-I-127-

Question Number 18199 by Tinkutara last updated on 17/Jul/17 $$\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{equivalent}\:\mathrm{weight}\:\mathrm{of} \\ $$$$\mathrm{KH}\left(\mathrm{IO}_{\mathrm{3}} \right)_{\mathrm{2}} \:\mathrm{as}\:\mathrm{an}\:\mathrm{oxidant}\:\mathrm{in}\:\mathrm{presence}\:\mathrm{of} \\ $$$$\mathrm{4}\:\left(\mathrm{N}\right)\:\mathrm{HCl}\:\mathrm{when}\:\mathrm{ICl}\:\mathrm{becomes}\:\mathrm{the} \\ $$$$\mathrm{reduced}\:\mathrm{form}?\:\left(\mathrm{K}\:=\:\mathrm{39},\:\mathrm{I}\:=\:\mathrm{127}\right) \\ $$ Terms of Service Privacy Policy…

Mixture-X-0-02-mol-of-Co-NH-3-5-SO-4-Br-and-0-02-mol-of-Co-NH-3-5-Br-SO-4-was-prepared-in-2-litre-of-solution-1-litre-of-mixture-X-excess-AgNO-3-Y-1-litre-of-mixture-X-excess-BaCl-2-

Question Number 18198 by Tinkutara last updated on 16/Jul/17 $$\mathrm{Mixture}\:\mathrm{X}\:=\:\mathrm{0}.\mathrm{02}\:\mathrm{mol}\:\mathrm{of} \\ $$$$\left[\mathrm{Co}\left(\mathrm{NH}_{\mathrm{3}} \right)_{\mathrm{5}} \mathrm{SO}_{\mathrm{4}} \right]\mathrm{Br}\:\mathrm{and}\:\mathrm{0}.\mathrm{02}\:\mathrm{mol}\:\mathrm{of} \\ $$$$\left[\mathrm{Co}\left(\mathrm{NH}_{\mathrm{3}} \right)_{\mathrm{5}} \mathrm{Br}\right]\mathrm{SO}_{\mathrm{4}} \:\mathrm{was}\:\mathrm{prepared}\:\mathrm{in}\:\mathrm{2} \\ $$$$\mathrm{litre}\:\mathrm{of}\:\mathrm{solution} \\ $$$$\mathrm{1}\:\mathrm{litre}\:\mathrm{of}\:\mathrm{mixture}\:\mathrm{X}\:+\:\mathrm{excess}\:\mathrm{AgNO}_{\mathrm{3}} \:\rightarrow\:\mathrm{Y}…

Rearrange-the-following-I-to-IV-in-the-the-order-of-increasing-masses-I-1-molecule-of-oxygen-II-1-atom-of-nitrogen-III-10-10-g-molecular-weight-of-oxygen-IV-10-18-g-atomic-weight-of-copp

Question Number 18197 by Tinkutara last updated on 16/Jul/17 $$\mathrm{Rearrange}\:\mathrm{the}\:\mathrm{following}\:\left(\mathrm{I}\:\mathrm{to}\:\mathrm{IV}\right)\:\mathrm{in}\:\mathrm{the} \\ $$$$\mathrm{the}\:\mathrm{order}\:\mathrm{of}\:\mathrm{increasing}\:\mathrm{masses}. \\ $$$$\mathrm{I}.\:\mathrm{1}\:\mathrm{molecule}\:\mathrm{of}\:\mathrm{oxygen} \\ $$$$\mathrm{II}.\:\mathrm{1}\:\mathrm{atom}\:\mathrm{of}\:\mathrm{nitrogen} \\ $$$$\mathrm{III}.\:\mathrm{10}^{\mathrm{10}} \:\mathrm{g}\:\mathrm{molecular}\:\mathrm{weight}\:\mathrm{of}\:\mathrm{oxygen} \\ $$$$\mathrm{IV}.\:\mathrm{10}^{−\mathrm{18}} \:\mathrm{g}\:\mathrm{atomic}\:\mathrm{weight}\:\mathrm{of}\:\mathrm{copper} \\ $$ Answered…

3-92-g-of-ferrous-ammonium-sulphate-are-dissolved-in-100-ml-of-water-20-ml-of-this-solution-requires-18-ml-of-potassium-permanganate-during-titration-for-complete-oxidation-The-weight-of-KMnO-4-pre

Question Number 18186 by Tinkutara last updated on 16/Jul/17 $$\mathrm{3}.\mathrm{92}\:\mathrm{g}\:\mathrm{of}\:\mathrm{ferrous}\:\mathrm{ammonium}\:\mathrm{sulphate} \\ $$$$\mathrm{are}\:\mathrm{dissolved}\:\mathrm{in}\:\mathrm{100}\:\mathrm{ml}\:\mathrm{of}\:\mathrm{water}.\:\mathrm{20}\:\mathrm{ml} \\ $$$$\mathrm{of}\:\mathrm{this}\:\mathrm{solution}\:\mathrm{requires}\:\mathrm{18}\:\mathrm{ml}\:\mathrm{of} \\ $$$$\mathrm{potassium}\:\mathrm{permanganate}\:\mathrm{during} \\ $$$$\mathrm{titration}\:\mathrm{for}\:\mathrm{complete}\:\mathrm{oxidation}.\:\mathrm{The} \\ $$$$\mathrm{weight}\:\mathrm{of}\:\mathrm{KMnO}_{\mathrm{4}} \:\mathrm{present}\:\mathrm{in}\:\mathrm{one}\:\mathrm{litre} \\ $$$$\mathrm{of}\:\mathrm{the}\:\mathrm{solution}\:\mathrm{is} \\ $$…

From-a-tower-of-height-H-a-particle-is-thrown-vertically-upward-with-speed-u-The-time-taken-by-the-particle-to-hit-the-ground-is-n-times-that-taken-by-it-to-reach-the-highest-point-of-its-path-Th

Question Number 18140 by Tinkutara last updated on 15/Jul/17 $$\mathrm{From}\:\mathrm{a}\:\mathrm{tower}\:\mathrm{of}\:\mathrm{height}\:{H},\:\mathrm{a}\:\mathrm{particle}\:\mathrm{is} \\ $$$$\mathrm{thrown}\:\mathrm{vertically}\:\mathrm{upward}\:\mathrm{with}\:\mathrm{speed} \\ $$$${u}.\:\mathrm{The}\:\mathrm{time}\:\mathrm{taken}\:\mathrm{by}\:\mathrm{the}\:\mathrm{particle},\:\mathrm{to} \\ $$$$\mathrm{hit}\:\mathrm{the}\:\mathrm{ground},\:\mathrm{is}\:{n}\:\mathrm{times}\:\mathrm{that}\:\mathrm{taken}\:\mathrm{by} \\ $$$$\mathrm{it}\:\mathrm{to}\:\mathrm{reach}\:\mathrm{the}\:\mathrm{highest}\:\mathrm{point}\:\mathrm{of}\:\mathrm{its}\:\mathrm{path}. \\ $$$$\mathrm{The}\:\mathrm{relation}\:\mathrm{between}\:{H},\:{u}\:\mathrm{and}\:{n}\:\mathrm{is} \\ $$$$\left(\mathrm{1}\right)\:\mathrm{2}{gH}\:=\:{n}^{\mathrm{2}} {u}^{\mathrm{2}} \\ $$$$\left(\mathrm{2}\right)\:{gH}\:=\:\left({n}\:−\:\mathrm{2}\right)^{\mathrm{2}}…

An-object-A-is-kept-fixed-at-the-point-x-3-m-and-y-1-25-m-on-a-plank-P-raised-above-the-ground-At-time-t-0-the-plank-starts-moving-along-the-x-direction-with-an-acceleration-1-5-ms-2-At-

Question Number 18142 by Tinkutara last updated on 15/Jul/17 $$\mathrm{An}\:\mathrm{object}\:{A}\:\mathrm{is}\:\mathrm{kept}\:\mathrm{fixed}\:\mathrm{at}\:\mathrm{the}\:\mathrm{point} \\ $$$${x}\:=\:\mathrm{3}\:\mathrm{m}\:\mathrm{and}\:{y}\:=\:\mathrm{1}.\mathrm{25}\:\mathrm{m}\:\mathrm{on}\:\mathrm{a}\:\mathrm{plank}\:{P} \\ $$$$\mathrm{raised}\:\mathrm{above}\:\mathrm{the}\:\mathrm{ground}.\:\mathrm{At}\:\mathrm{time}\:{t}\:=\:\mathrm{0}, \\ $$$$\mathrm{the}\:\mathrm{plank}\:\mathrm{starts}\:\mathrm{moving}\:\mathrm{along}\:\mathrm{the}\:{x}- \\ $$$$\mathrm{direction}\:\mathrm{with}\:\mathrm{an}\:\mathrm{acceleration}\:\mathrm{1}.\mathrm{5}\:\mathrm{ms}^{−\mathrm{2}} . \\ $$$$\mathrm{At}\:\mathrm{the}\:\mathrm{same}\:\mathrm{instant}\:\mathrm{a}\:\mathrm{stone}\:\mathrm{is}\:\mathrm{projected} \\ $$$$\mathrm{from}\:\mathrm{the}\:\mathrm{origin}\:\mathrm{with}\:\mathrm{a}\:\mathrm{velocity}\:\overset{\rightarrow} {{u}}\:\mathrm{as} \\…