A certain reaction is exothermic in the forward direction. The reaction has more moles of gas on the product side. Which of the following stresses would increase the yield of the products (shift right)?

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium