Consider the given reaction: N₂ + 3H₂ → 2NH₃ If 56 g of N₂ reacts with 12 g of H₂ and produces 51 g of NH₃, what is the theoretical yield (TY) of NH₃ and the percentage yield (PY) of the reaction? (Molar mass of N₂ = 28 g/mol, H₂ = 2 g/mol and NH₃ = 17 g/mol)
- TY = 34 g and PY = 33%
- TY = 68 g and PY = 75%
- TY = 34 g and PY = 75%
- None of these
Explanation
Moles: N₂ = 56/28 = 2 mol, H₂ = 12/2 = 6 mol → stoichiometric (2 mol N₂ needs 6 mol H₂).
Theoretical NH₃ = 2×2 = 4 mol → 4×17 = 68 g; % yield = (51/68)×100 = 75%.
Related MCQs
کاربونیٹڈ پانی کس چیز کا محلول ہے؟
- Water oxidised by carbon at high temper
- Carbon in water under high pressure
- Carbon is oxidised by water under high pressure
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
کس قسم کے ردِعمل میں کے سی درجہ حرارت کے ساتھ براہِ راست بڑھتا ہے؟
- Neutralization reaction
- Endothermic
- Exothermic
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
درج ذیل میں سے کون سا تیزابی بفر ہے؟
- HCN+NaCN
- CH3COOH+NH4Cl
- HCl+NaCl
- HCL+NH4Cl
اس سوال کو وضاحت کے ساتھ پڑھیں
- Electricity
- Freezer
- O₂
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
کوویلنٹ بانڈ کیسے بنتا ہے؟
- Sharing of electron
- Gain of an electron
- Transfer of electron
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Leave a Reply
Your email address will not be published. Required fields are marked *
