Home › NEET UG › chemistry › c11combust_bondlatt › Per NCERT §5.3, a BOMB CALORIMETER measures whic…
Per NCERT §5.3, a BOMB CALORIMETER measures which thermodynamic quantity?
ABond enthalpy directly
Bq_V = ΔU (heat at constant volume, since the bomb is sealed and ΔV = 0)
Cq_p = ΔH
DSpecific heat alone
Answer & Solution
Correct answer: B. q_V = ΔU (heat at constant volume, since the bomb is sealed and ΔV = 0)
Per NCERT §5.3(a), bomb calorimeter = constant V → q_V = ΔU. Constant-p calorimeter gives ΔH.
Related questions
Per NCERT Table 5.2, the Δ_f H° of C(diamond) is which value (note: NOT zero, because grapPer NCERT Problem 5.6, 1 g graphite burnt in a bomb calorimeter (heat capacity 20.7 kJ/K) Per NCERT §5.5(e), the enthalpy of SOLUTION Δ_sol H° of an ionic compound in water is decoPer NCERT §5.5(d), the BORN-HABER cycle for NaCl uses Hess's law and includes which steps?Per NCERT §5.5(d), the LATTICE ENTHALPY of an ionic compound is defined as the enthalpy chPer NCERT Table 5.3(b), the bond enthalpy of N≡N triple bond is which value — among the hiPer NCERT eqn 5.17, the standard enthalpy of a GAS-phase reaction from bond enthalpies is Per NCERT §5.5(c), in CH₄ atomisation requires 1665 kJ/mol. What is the MEAN C-H bond enth