Question

1" Law Word Problems 1) An ideal gas is enclosed in a piston, and 1600 J of work is done on the gas. As this happens, the intemal energy of the gas increases by only 500 J. During this process, how much heat flows into or ou of the ideal gas? Enter a positive number to indicate a heat flow into the gas or a negative number to indicate a heat flow out of the gas. 2) A system gains 975 J of heat while 450 J of work is done by the system. What is the change in intenal energy of the system? 3) According to the 1" law of thermodynamics, if a gas undergoes an isothermal process with 200 J of heat added it will end with (a) no work done, and an increase in internal energy of 200 (b) no work done, and a decrease in internal energy of 200 3 (c) 200J of work done on the gas, and no change in internal energy (d) 200 J of work done by the gas, and no change in internal energy

Answer 1