# Question

For nitrogen gas the values of Cv and Cp at 25oC are 20.8 J K-1 mol-1 and 29.1 J K-1 mol-1, respectively. When a sample of nitrogen is heated at constant pres-sure, what fraction of the energy is used to increase the internal energy of the gas? How is the remainder of the energy used? How much energy is required to raise the temperature of 100.0 g N2 from 25.0oC to 85.0oC in a vessel having a constant volume?

## Answer to relevant Questions

Consider a rigid, insulated box containing 0.400 mole of He(g) at 20.0oC and 1.00 atm in one compartment and 0.600 mole of N2(g) at 100.0oC and 2.00 atm in the other compartment. These compartments are connected by a ...The molar entropy of helium gas at 25oC and 1.00 atm is 126.1 J K-1mol-1. Assuming ideal behavior, calculate the entropy of the following. a. 0.100 mole of He(g) at 25oC and a volume of 5.00 L b. 3.00 moles of He(g) at 25oC ...What determines ΔSsurr for a process? To calculate ΔSsurr at constant pressure and temperature, we use the following equation: ΔSsurr = 2ΔH/ T. Why does a minus sign appear in the equation, and why is ΔSsurr inversely ...For the reaction 2Al(s) + 3Br2(l) → 2AlBr3(s) ΔSo is equal to –144 J/ K. Use this value and data from Appendix 4 to calculate the value of So for solid alumi-num bromide. Of the functions ΔHo, ΔSo, and ΔGo, which depends most strongly on temperature? When ΔGo is calculated at temperatures other than 25oC, what assumptions are generally made concerning ΔHo and ΔSo?Post your question

0