Enthalpy - Page 4
Questions
- What is the heat of formation of water in kj/mol?
- What is the difference between enthalpy and entropy?
- Calculate the change in enthalpy #( DeltaH)# for the chemical reaction modeled by this chemical equation: #H_2 + Cl_2 rarr 2HCl# Is energy entering or leaving the system? How do you know? What happens to the covalent bonds during this reaction?
- What is the amount of energy required to raise the temperature of 1 g of water 1°C?
- What is #DeltaH_f^@# for ammonia, and how is it formulated?
- Calculation of enthalpy and entropy of fusion of an unknown solid..?
- How many grams of C2H4 must burn to give 84.0 kJ of heat?
- Carbon and oxygen react to give carbon dioxide. The reaction of 4.49 g #C(s)# with 9.21 g #O_2(g)#releases 113.2 kJ of heat. What is the enthalpy of formation of #CO_2(g)#?
- How can I calculate the enthalpy change of a reaction?
- Using the balanced equation shown below, what is the mass of C3H8 that must react in order to release 1.25×10^6 kJ of heat? ΔHrxn = –2219.9 kJ
- What is the enthalpy change for the reaction of 1.000 x 10^2g of nitrogen with sufficient oxygen according to the equation: N2 + O2 -->2NO H=+180.6 kJ?
- What are all the relevant extensive and intensive thermodynamic quantities?
- How would you calculate the standard enthalpy change for the reaction 2A + B = 2C + 2D, if A = -269 B = -411 C = 189 D = -481?
- Why is it when using bond enthalpies to calculate enthalpies of reaction, they are not always accurate and enthalpies of formation are preferred?
- What is #DeltaH_f^@# for #NO(g)#?
- How can you find heat of formation of water?
- What is the #DeltaH_f^@# of liquid water ? Show calculation with bond energies
- What is the change in internal energy of reaction when #"0.721 g"# of titanium is placed into a bomb calorimeter and allowed to combust, if the temperature rises from #25^@ "C"# to #53.8^@ "C"#? #C_"cal" = "9.84 kJ/K"#.
- What is the standard enthalpy of the reaction CO+H2O --> CO2+H2?
- How do you calculate enthalpy of vaporization for 1 mole of water?