In an investigation on accuracy and precision, Myriah measures the mass of a 10.00 g piece of metal several times. Her measurements are 9.98 g, 10.02 g, 10.01 g, and 9.99 g. Which statement best describes her results? They are both precise and accurate. They are neither accurate nor precise. They are precise but not accurate. They are accurate but not precise.

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?