Two reactions are given below: C (graphite) + O 2( g ) → CO 2( g ) ; Δ H = – 393.7 kJ ; C…
Chemistry · Class 11 · CBSE — Thermodynamics
Two reactions are given below:
C(graphite) + O2(g) → CO2(g) ; ΔH = – 393.7 kJ ; C(diamond) → C(graphite) ; ΔH = –2.1 kJ
What quantity of diamond will give 800 kJ of heat on burning?
C(graphite) + O2(g) → CO2(g) ; ΔH = – 393.7 kJ ; C(diamond) → C(graphite) ; ΔH = –2.1 kJ
What quantity of diamond will give 800 kJ of heat on burning?
- 24.25 g
- 15.24 g
- 2 g
- 12.12 g
Answer
(B) 15.24 g
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- What will be D H for the reaction, CH 2 Cl 2 → C + 2H + 2Cl? ( B . E . of C H and C Cl bonds are 416 kJ mol…
- 50 mL of 1 M NaOH is mixed with 50 mL of 1 M HCl and rise in temperature T 1 is noted. In second experiment…
- What is the enthalpy change for the given reaction, if enthalpies of formation of Al 2 O 3 and Fe 2 O 3 are…
- For a reaction, CaCO 3 ( s ) → CaO ( s ) + CO 2( g ) D f H °(CaO) = – 635.1 kJ mol –1 , D f H °(CO 2 ) =…
- Which of the following does not represent enthalpy change during phase transformation?
- For combustion of 1 mole of benzene at 25°C, the heat of reaction at constant pressure is –780.9 kcal. What…
- The correct relationship between free energy change in a reaction and the corresponding equilibrium constant…
- Which of the following statements regarding Gibb’s energy change is correct?
More Thermodynamics questions · Browse all practice questions