Enthalpies of Formation, Combustion, Atomisation and Phase Change
JEE Main Chemistry · Chemical Thermodynamics · 13 questions, latest first
- Consider the reaction 2 H_2 S( g)+3 O_2( g) → 2 H_2 O(l)+2 SO_2( g) The magnitude of enthalpy change for the reaction in kJ…20268 April, Shift 2 · Q74
- Total enthalpy change for freezing of 1 mol of water at 10^° C to ice at -10^° C is ____ (Given: Δ_fus H=x kJ / mol C_p[H_2…20257 April, Shift 1 · Q53
- Given below are two statements: Statement I: When a system containing ice in equilibrium with water (liquid) is heated, heat is…20253 April, Shift 2 · Q53
- Consider the following data: Heat of formation of CO_2( g)=-393.5 kJ mol^-1 Heat of formation of H_2 O(l)=-286.0 kJ mol^-1 Heat…202528 January, Shift 2 · Q71
- Consider the following cases of standard enthalpy of reaction (Δ H_r^°. in.kJ mol^-1) C_2 H_6( g)+7/2 O_2( g) → 2 CO_2( g)+3 H_2…202522 January, Shift 2 · Q72
- Combustion of 1 mole of benzene is expressed at C_6 H_6(l)+15/2 O_2( g) → 6 CO_2( g)+3 H_2 O(l). The standard enthalpy of…20245 April, Shift 2 · Q83
- Standard enthalpy of vapourisation for CCl_4 is 30.5 kJ mol^-1. Heat required for vapourisation of 284 g of CCl_4 at constant…202429 January, Shift 2 · Q84
- Solid fuel used in rocket is a mixture of Fe_2 O_3 and Al (in ratio 1:2). The heat evolved ( kJ ) per gram of the mixture is ____…202311 April, Shift 1 · Q83
- The number of endothermic process/es from the following is ____ A. I_2( g) → 2 I(g) B. HCl(g) → H(g)+Cl(g) C. H_2 O(l) → H_2 O(g)…202310 April, Shift 2 · Q83
- Consider the following data Heat of combustion of H_2( g) =-241.8 kJ mol^-1 Heat of combustion of C(s) =-393.5 kJ mol^-1 Heat of…20236 April, Shift 2 · Q83
- Enthalpies of formation of CCl_4( g), H_2 O(g), CO_2( g) and HCl(g) are -105,-242,-394 and -92 kJ mol^-1 respectively. The…202331 January, Shift 2 · Q54
- 0 L of CO_2 is produced on complete combustion of 16.8 L gaseous mixture of ethene and methane at 25°C and 1 atm. Heat evolved…202325 January, Shift 2 · Q53
- An athlete is given 100 g of glucose (C_6 H_12 O_6) for energy. This is equivalent to 1800 kJ of energy. The 50 % of this energy…202325 January, Shift 1 · Q53