The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal is required to raise 0.48 g of CO(g) from 304 to 392K?

Which of the following statement(s) is (or are) true? I. Heat (g) is a state function because AH is a state function and q ΔΗ %3D II. When 50.0 grams of aluminum at 25.0 °C is placed in 50.0 mL of water at 30.0 °C the water will undergo a smaller temperature change than the aluminum (Csp H2O = 4.184 J/g °C; Csp Aluminum 0.89 J/g %3D °C) II. When a gas is compressed (AV is negative), the work of the gas is negative since the surroundings is doing work on the system and energy flows out of the system IV. For the reaction 2N2 (g) + 502 2N205 (g), the change in enthalpy is the same whether the reaction takes place in one step or in ---> a series of steps II, III and IV I, II, and IV Mand III

5. Hydrogen cyanide is a highly poisonous, volatile liquid. One way in which it can be prepared is by the reaction: CH4 (g) + NH3 (g)→ HCN (g) + 3 H2 (g) Use Hess' law and the following thermochemical equations to find the heat of the above reaction at constant pressure. N2 (g) + 3 H2 (g) → 2 NH3 (g); AH =-91,8 kJ C (graphite) + 2 H2 (g) → CH4 (g); AH =-74,9 kJ H2 (g) + 2 C (graphite) + N2 (g) → 2 HCN (g); AH = 270,3 kJ [4] %3D

the enthalpy of reaction is -11.7 kJ/mol for the following reaction HCN(aq) + NaOH(aq) --> H2O(I) + NaCN(aq) if 0.926 g of HCN react with excess NaOH in a coffee cup calorimeter what amount will the temp change by? use 77.3 g as the total mass in the calorimeter and use 4.184 J/gC as the specific heat give answer to 2 decimal places