What is the change in internal energy of the air within the piston?   The air within a piston equipped with a cylinder absorbs 555 J of heat and expands from an initial volume of 0.10 L to a final volume of 0.87 Lagainst an external pressure of 1.0 atm.

A 79.1 g sample of an unknown solid is heated to 62.6ºC and placed into a calorimeter containing 92.1 g of water at 22ºC. If the final temperature of the solid sample and the water is 32.5ºC, what is the specific heat of the solid? Please provide your final answer rounded to two decimal places.

As a system increases in volume, it absorbs 55.0 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.540 atm. The final volume of the system is 58.2 L. What was the initial volume of the system if the internal energy of the system decreased by 103.4 J?

The air within a piston equipped with a cylinder absorbs 545 J of heat and expands from an initial volume of 0.10 L to a final volume of 0.83 L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?         Express your answer in joules.

A 44.0 g sample of unknown metal at 99.0°C was placed in a constant-pressure calorimeter containing 80.0 g of water at 24.0°C, the final temperature of the system was found to be 28.4°C. Calculate the specific heat of the metal.

A 37.7 g. piece of an unknown metal is heated up 43.5 °C when given 1,095.4 J of heat.  What is the specific heat capacity of the metal?

Q: A sample of gas expands from 40.0 L to 42.0 L at a constant pressure of 1 bar and receives 48 J of heat. Calculate ?U (in J) for the gas during this process. Answer in correct sig digs

When a sample of titanium was supplied 1.00 kJ of energy, the temperature rose 103.5 °C. If the specific heat of titanium is 0.523 J/g · °C, what is the mass of the titanium sample?

Show work to support your answer to this question. a) In a study of gaseous xenon, a chemist finds that 27.6 J of energy must be added to increase the temperature of 10.7 g of xenon from 22.7° C to 39.9° C.  What is the experimental specific heat value for xenon gas? b) Using the specific heat you calculated for gaseous xenon, how much heat will be required to heat the 10.7 g sample of xenon from 39.9° C to 278.9° C?

A group of students place 15.41g of a metal into a test tube. They place the test tube into a beaker of boiling water until the temperature of the metal was 89.8°C. Then they quickly place the heated metal into a beaker of 10.47g of water with an initial temperature of 16.4°C. The temperature of the mixturecame to rest at 26.1°C. What is the specific heat of the metal used? (CH2O = 4.18 J/g°C)