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A gas is compressed inside a cylinder, and 462 J of work is done on the gas. During the same process, the gas releases 128 J of heat to the surroundings.Using the first law of thermodynamics, calculate the change in the internal energy of the gas.
A certain gas expands in volume from 2.0 L to 6.0 L at constant temperature. Calculate the work done by the gas if it expands
A Bunsen burner flame takes 8 minutes to raise 250 g of water from 20.0°C to 100.0°C when the water is contained in a beaker of mass 100.0 g having a specific heat capacity of 0.670 J g⁻¹ °C⁻¹
The osmotic pressure of a solution containing 1.26 g of a protein dissolved in 200 mL of aqueous solution is 2.57×10−3 bar at 27°C. Determine the molar mass of the protein.
In a mixture of solution, 50 mL of 16.9%(w/v) AgNO3 solution and 50mL of 5.8%(w/v)NaCl solutions are mixed. Calculate the mass of the precipitate formed after mixing.
At what temperature does water boil at 101.325 kpa if 117g of NaCl is added to 222g of water in a saucepan?
Determine whether the entropy change is positive or negative for each of the following reactions, and explain the reasoning behind your predictions.
Calculate Free energy change (delta G) for the following reactions at 25°C:
For the autoionization of water at 25°C, what is ΔG° for the process?
A 110.0 g piece of zinc at 95.0°C is placed into 60.0 g of water inside a 100.0 g calorimeter at 20.0°C. Given the specific heat capacities of zinc (0.377 kJ/kg°C) and the calorimeter (0.419 kJ/kg°C), determine the final temperature of the system once it reaches thermal equilibrium.