Question
Find n when 1 mol of each NH _ 3(g) and HCl _ (g) , reacts to form solid NH _4 Cl .
MHT CET
Chemistry
Chemical Equilibrium
2026
MHT CET 2026 (15 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. 1
- B. -2
- C. -1
- D. -3
Answer
B. -2
Step-by-step solution
The balanced chemical equation for the reaction is: NH _ 3(g) + HCl _ (g) NH _4 Cl _ (s) The change in the number of moles of gaseous species, n, is given by the difference between the number of moles of gaseous products and gaseous reactants. Number of moles of gaseous products, n_P = 0 Number of moles of gaseous reactants, n_R = 1 + 1 = 2 n = n_P - n_R = 0 - 2 = -2 Answer: -2
Related: Chemistry — Chemical Equilibrium · All PYQ Banks