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Would entropy for a gas be heat Irreverisibly be greater than, less than or equal to a gas heated reversibly? Explain
The standard molar enthalpy change for this reaction is -1.3MJ. What is the enthalpy change when 6 moles of octane are combusted?
What is the thermochemical equation for when I dissolve 0.99g of NH4Cl into 30.00g of water? How would I go about solving this?
if a 1.00 g piece of gold (density = 19.32 g/cm^3) is hammered into a sheet 8.0 x 5.0 ft what is the average thickness of the sheet in meters?
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s). If 12.5 g of iron(III) oxide (rust) are produced from 8.74 g of iron, how much oxygen gas is needed for this reaction?
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
Calculate the density of N2 at STP, (a) using the ideal-gas law and (b) using the molar volume and molar mass of N2.
At the freezing point of ethanol, C2H5OH, -115 degree C, the Enthalpy of fusion is 4.60 kJ/mol. What is the the enthalpy change when 23.0 grams of ethanol melts?
The valve between a 5-L tank containing a gas at 9 atm and a 10-L tank containing a gas at 6 atm is opened. Calculate the final pressure.
If the specific heat of the salt is 0.663 J/C.g, what is the enthalpy of solution for salt MX if its molar mass is 68.0 g/mol?
Compute the internal energy change if an ideal gas expands from a volume of 2.3 L to 6.4 L against a pressure of 1.8 atm and 330 J of heat are transferred from the surroundings to the system.
the air temperature is 38C in which speed of sound is 336m/s. The zero of the meter scale coincides with the top end of resonance column tube.when the first resonance occurs,reading of water level is?
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
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