Photosynthesis is a reaction that requires an input of energy, but the energy is transferred to the product. this is a good example of which law?
the zeroth law of thermodynamics
the second law of thermodynamics
the third law of thermodynamics
the first law of thermodynamics

Astate of matter all that has define volume and can flow is a(n)

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

In a star, nuclear fusion occurs in the a. photosphere. b. corona. c. radiative zone. d. core.