What statements best define percent error? check all that apply. it is a mathematical way of showing accuracy. the higher the percent error, the more accurate the data set. the higher the percent error, the less accurate the data set. only the experimental value is needed to calculate percent error. only the actual, or accepted, value is needed to calculate percent error. a percent error always has a positive value.

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.