Carbon monoxide, CO, reacts with chlorine, Cl,, to form the very poisonous gas phosgene, COCI,. Calculate AHn using values from the table of thermodynamic properties. AHxn = J/mol Calculate AC; of the reaction from the given gaseous heat capacity data. J Ср (СО) 3D 29.9. Cp (Cl,) J = 33.9 mol · K Cp (COCI,) J = 59.7 mol · K mol · K J mol · K

An ideal gas sealed in a rigid 3.13-L cylinder, initially at pressure Pi=12.70 atm, is cooled until the pressure in the cylinder is Pf=1.18 atm. What is the enthalpy change for this process?What is the change in internal energy for this process?

What is the specific heat capacity of a substance of mass 159.5 g that increases in temperature from 22.2 °C to 25.2 °C after absorbing 1.15 kJ of energy in the form of heat? Express your answer in J g-1 °C-1. Do not try to identify the substance.

4. What mass of propane must be burned to supply 700. kJ as heat? The thermochemical equation for the combustion of propane is: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4H₂O(1) AH°-2220. kJ

The standard heat of formation, AH;, is defined as the enthalpy change for the formation of one mole of Part B substance from its constituent elements in their standard states. Thus, elements in their standard states have AH: = 0. Heat of formation values can be used The combustion of ethene, C2H4, occurs via the reaction to calculate the enthalpy change of any reaction. C2H4 (g) + 302 (g)→2CO2(g) + 2H20(g) Consider, for example, the reaction with heat of formation values given by the following table: 2NΟ (5) + Ο, (s) 2ΝO, (g) ΔΗρ (kJ/mol) Substance with heat of formation values given by the following table: C2H4 (g) 52.47 CO2 (g) -393.5 Substance (kJ/mol) H2O(g) -241.8 NO(g) 90.2 Calculate the enthalpy for the combustion of ethene. 02 (g) Express your answer to four significant figures and include the appropriate units. NO2(g) 33.2 • View Available Hint(s) Then the heat of formation for the overall reaction is ΔΗ ΔΗ (products) -ΔΗ; (reactants ) [2(90.2) + 0] HA ? 2(33.2) -114 kJ/mol…