The rate of decomposition of PH3 was studied at 961.00 °C. The rate constant was found to be 0.0805  s–1. $$4PH3​P4​+6H2​   3rd attempt   See Hint If the reaction is begun with an initial PH3 concentration of 0.95 M, what will be the concentration of PH3 after 26.00  s?      M

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