List of top Chemistry Questions on Stoichiometry and Stoichiometric Calculations asked in JKCET

$ 44.8\, mL $ of a vapour under $ STP $ ( $ P = 1 $ atmosphere, $ T = 273\, K $ ) conditions has a mass of $ 320\, mg $ . This could be the vapour of (assume ideal behaviour for the vapour) (Atomic masses of $ H $ , $ Br $ , $ C $ and $ I $ are respecti- vely $ 1, 80, 12 $ and $ 127 \,g \, mol^{-1} $ )

$1\, mol$ of $H _{2} SO _{4}$ is mixed with $2$ moles of $NaOH$. The heat evolved will be