Compute the internal energy change if an ideal gas expands, Ask an Expert

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1 - 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.

2 - A sample of metal weighing 33.6 g is heated to 99.4 oC and transferred to a calorimeter containing 51.2 g of water at an initial temperature of 19.8 oC. The final temperature in the calorimeter is 25.0oC. What is the specific heat of the metal?

3 - Given the following equation for the combustion of ammonia, compute the enthalpy change if 2.2 moles of ammonia are burned in excess oxygen 4NH3(g) + 5O2(g) ? 4NO(g) + 6H2O(g) ?H = ?904 kJ/mol

4 - 0.06 moles each of Ag+(aq) and Cl?(aq) react to form AgCl(s) precipitate in a calorimeter containing 48.8 g of water and the temperature increases from 20.1 oC to 39.4 oC. Compute the enthalpy of reaction per mole of Ag+.

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Chemistry, Academics

Category:- Chemistry
Reference No.:- M9497448

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