The energy required to make a compound from its elements is called Question 13 options: A) enthalpy of reaction. B) entropy of reaction. C) free energy. D) enthalpy of formation.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;

answerleaving cheese out to get moldy;